Baldr Sky Dive1 “Lost Memory”

Baldr Sky Dive1 “Lost Memory”
TitleBaldr Sky Dive1 “Lost Memory”
Aliasesバルドスカイ ダイブ1 ロストメモリー, BSD1, Baldrsky 1
LengthVery long (> 50 hours)
DeveloperTeam Baldrhead
Publishers Giga
 Baldr Sky Hanhuazu
 Sekai Project
 Alei Translations
Shares characters
Baldr Sky "Zero"
Baldr Sky Dive2 “Recordare”
Same series
Baldr Force
LinksWikipedia (en), Wikipedia (ja), Wikidata, VNStat


While Kou is asleep in his bed, the scream of a girl wakes him up. He rises to see in front of him a battle full of gunshots and flashing bombs exploding. He realizes that he is wearing an iron armor. "What's this?" He doesn't know what's going on.

He leaves the virtual world with Rain, who says she is his junior partner. They arrive in a ruined city, and Kou learns that he is a special Simulacrum user who graduated from school several years ago. He has forgotten his memories that may have had a significant impact on his life. The name of the case that slowly materializes from his lost memory, "Gray Christmas."

"What is Gray Christmas? Why was I investigating the case?" He comes to remember the whole story of the case and its meaning. A peaceful life that was meant to last forever, which however, suddenly comes to an end...

[Edited from ErogeShop]

Built-in Encyclopedia 3.0 Romance 3.0 Beat 'em Up 3.0 Amnesia 2.9 Multiple Route Mystery 2.9 Normal Scene Recollection 2.8 Combat Capable Friends 2.8 Virtual Reality 2.8 ADV 2.8 New Game Plus 2.7 Multiple Endings 2.7 Enforced Playing Order 2.7 Cyberpunk 2.7 Unlockable Routes 2.7 Action Game 2.7 Unlockable Event 2.7 Flashback 2.6 Osananajimi Heroine 2.6 Built-in Flowchart 2.6 Male Protagonist 2.6 Mecha 2.6 Soldier Heroine 2.6 Soldier Protagonist 2.6 Nanomachines 2.6 Artificial Intelligence 2.5 Difficulty Settings 2.5 Mecha Combat 2.5 Protagonist with Voice Acting 2.5 Military 2.5 Mecha Pilot Heroine 2.5 Mecha Pilot Protagonist 2.5 Mercenary Protagonist 2.5 Carryover Save 2.4 More Than Seven Endings 2.4 Protagonist with a Face 2.4 Unlockable Choices 2.4 Madness 2.4 Mad Scientist Support Character 2.4 Corporations 2.4 Childhood Promise 2.3 Hard Science Fiction 2.3 The Holiday Season 2.3 Religious Organization 2.3 Side Images 2.3 Apocalypse 2.3 Shooter Game 2.3 Track Display 2.2 Cyborg Heroine 2.2 Bad Endings with Story 2.2 Slums 2.2 Mercenary Heroine 2.2 Early Branching Plot 2.2 Hypnotism 2.2 Mercenary Support Character 2.1 Arcology 2.1 Playtime Counter 2.1 Alternate Starting Point 2.1 Unlockable Side Stories 2.0 Unique Routes 2.0 Skip to Choices 2.0 Unlockable Bonus Content 2.0 Priest Support Character 2.0 Time Stop 2.0 Protagonist with Sexual Experience 2.0 Intrigue 2.0 Loli Support Character 2.0 Revenge 1.9 Skippable Gameplay 1.9 Sexual Content 1.8 Skip Scenes 1.8 Infodumping 1.8 Jealousy 1.8 Lolicon 1.6 Heroine with Sexual Experience 1.6 Blowjob 1.6 Game Over 1.5 Death of Heroine 1.2 Only Avoidable Rape Scenes 0.9 Genius Heroine 0.7


Kadokura Kou
Kadokura Kou門倉 甲 B
MeasurementsHeight: 174cm, Weight: 64kg
Birthday7 March
Hair, Brown, Shaggy, Short
Eyes, Blue
Body, Average Height, Pale, Slim, Teen
Clothes, Belt, Coat, Necktie, School Uniform, Shirt, Trousers, Uniform
Personality, Ore, Proactive
Role, Ex-boyfriend, Mecha Pilot, Mercenary, Nephew, Not a Virgin, Son, Student
Engages in, Bridal Carry, Fighting, Investigation
Subject of, Amnesia, Avoidable Death, Delusion, Psychological Trauma
Engages in (Sexual), Butterfly, Doggy Style, Group Sex, Missionary, Nipple Sucking, Outdoor Sex, Sex in Public Places, Sex in Water, Sitting Sex, Sixty-nine
Subject of (Sexual), Blowjob, Boobjob, Twin Boobjob
Voiced byYamashita Kazuma


The protagonist of the story. A free mercenary and an excellent Simulacrum pilot. Kou has been chasing after the the truth behind the incident known as "Gray Christmas", in which his town and school was razed, but loses parts of his memory at the beginning of the story.

He pilots the Simulacrum "Shadow Wolf".

Main characters

Kirishima Rain
Kirishima Rain桐島 レイン AB
AliasesSecond Lieutenant
MeasurementsHeight: 171cm, Weight: 53kg, Bust-Waist-Hips: 91-52-83cm
Birthday24 July
Hair, Blond, Blunt Bangs, Parted in Middle, Sidehair, Waist Length+
Eyes, Blue, Tsurime
Body, Average Height, E+ Cup, Pale, Slim, Young-adult
Clothes, Beret, Boots, Dress, Maid's Dress, Military Uniform, Mini-dress, Miniskirt, Necktie, Pendant Necklace, School Uniform, Shirt, Thigh-high Stockings, Torn Clothing, Unusual Hair Ornaments, Vest
Items, Handgun
Personality, Flustered, Kind, Loyal, Naive, Proactive, Refined, Serious, Shy, Stoic, Watashi
Role, Mecha Pilot, Mercenary, Not a Virgin, Student, Wealthy
Engages in, Fighting, Justifiable Homicide, Unarmed Fighting
Subject of, Delusion, Piggyback Ride, Psychological Trauma, Rape Attempt
Engages in (Sexual), Blowjob, Boobjob, Masturbation, Sex with Monsters
Subject of (Sexual), Cowgirl, Doggy Style, Missionary, Nipple Sucking, Sitting Sex
Voiced byImuraya Honoka


A mercenary and Kou's subordinate.
Referring to Kou as Lieutenant, she serves as a guide to the amnesiac Kou. She acts as both his moral and physical support.

Even though she is polite and gentle, her gestures and expression often leave an impression of coldness.
She rarely expresses much emotion, but is merciless towards her enemies.

Her actions usually put Kou's safety as top priority, so much that she may even give up her own life for Kou.

She pilots the Simulacrum "Aigis Guard".
<hidden by spoiler settings>Her father is the head of GOAT's Asian division, Kirishima Isao. During her school days, she piloted the Simulacrum "Aigis".

Nagisa Chinatsu
Nagisa Chinatsu渚 千夏 O
MeasurementsHeight: 163cm, Weight: 49kg, Bust-Waist-Hips: 90-52-84cm
Birthday27 October
Hair, Pink, Ponytail, Short, Sidehair
Eyes, Amber, Tareme
Body, Average Height, E+ Cup, Pale, Slim, Teen
Clothes, Belt, Bikini, Capri Pants, Hair Tie, High Heels Boots, Jumpsuit, Leotard, Maid's Dress, Military Uniform, Mini-dress, Robe, School Uniform, Sport Bloomers, Sports Shoes, Tank Top, Thigh-high Boots, T-shirt
Personality, Atashi, Cautious, Cold-hearted, Distrustful, Energetic, Outgoing, Pragmatic, Secretive, Serious, Short-tempered, Stoic, Tomboy, Vindictive
Role, Cyborg, Friend, Mecha Pilot, Soldier, Student
Engages in, Fighting, Flirting, Revenge, Soccer, Sports, Swimming, Teasing, Unarmed Fighting
Subject of, Amputation, Delusion, Disappearance, Other Route Death, Psychological Trauma, Torture
Engages in (Sexual), Blowjob, Boobjob, Food Play, Masturbation, Sex in Water, Sixty-nine, Virgin Sex
Subject of (Sexual), Anal Sex, Butterfly, Multiple Penetration, Nipple Sucking, Piledriver, Quickie Fix, Sitting Sex, Suspension Bondage, Tominagi, Vaginal Fingering
Voiced byKamiya Nao


A friend of Kou and his former dormitory-mate. Cheerful and sporty, she often attempted to flirt with Kou. She seemingly disappeared after the events of Gray Christmas.
<hidden by spoiler settings>In truth, she has become a member of GOAT, the global anti-AI special forces team, and her personality has become considerably embittered by the event which she perceives as a betrayal by their former lecturers.

She pilots the Simulacrum "Crimson Lotus".
During her school days, she piloted the Simulacrum "Shadow Wolf 'RIN'".

Wakakusa Nanoha
Wakakusa Nanoha若草 菜ノ葉 A
MeasurementsHeight: 156cm, Weight: 43kg, Bust-Waist-Hips: 81-53-77cm
Birthday19 October
Hair, Green, Parted to Side, Short, Side Tail
Eyes, Tareme, Violet
Body, Average Height, Pale, Slim, Teen
Clothes, Coat, Hoodie, Maid's Dress, Overall, Panties, Pantyhose, Rubber Band With Beads, School Swimsuit, Turtleneck Shirt
Personality, Emotional, Hetare, Idealist, Jealous, Kind, Naive, Pacifist, Secretive, Sensitive, Timid, Watashi
Role, Childhood Friend, Lonely, Orphan, Shopkeeper, Student
Engages in, Avoidable Rape, Cooking, Gardening
Subject of, Avoidable Death, Injury
Engages in (Sexual), Blowjob, Group Sex, Handjob, Lesbian Sex, Masturbation, Virgin Sex
Subject of (Sexual), Anal Sex, Missionary, Multiple Penetration, Sitting Sex, Standing Sex, Vaginal Fingering
Voiced byAgumi Oto


Kou's childhood friend who is a year younger than him. Kind, sensitive and talented at gardening and cooking, she often bursts into tears at the slightest provocation.
<hidden by spoiler settings>Her parents were researchers at the Drexler Organisation and mentors to Kurihara Naoki until they were killed in a terrorist attack. After the events of Grey Christmas, she becomes the keeper of an internet cafe Kou and Rain unwittingly frequent.

Side characters

Anan Yoshio
Anan Yoshio阿南 よしお A
MeasurementsHeight: 166cm, Weight: 93kg
Birthday20 September
Hair, Black, Short, Sideburns
Body, Mole, Overweight, Ugly
Clothes, Necktie, Suit
Personality, Coward, Washi
Role, Mayor
Engages in, Rape Attempt


The Mayor of Suzushiro City.

While rumours abound of his shady ties to corporations, he has never once been arrested, though whisperings persist.

Father Gregory
Father Gregoryグレゴリー神父 
MeasurementsHeight: 177cm, Weight: 86kg
Body, Adult
Clothes, Habit, Robe
Items, Chainsaw
Personality, Eccentric, Manipulative, Religious, Sly, Talkative, Violent, Watashi
Role, Antagonist, Head of a Sect, Mecha Pilot, Priest, Villain
Engages in, Kidnapping, Rebellion, Religion
Subject of, Delusion, Mental Affliction
Voiced byJouge Sayuu


Leader of the radical religious group, Dominion. His group reveres artificial intelligence as a god, Sofia, and teaches that the current state of reality is but an illusion.

<hidden by spoiler settings>He pilots the Simulacrum "Baptizein".

Gilbert Gilberto
Gilbert Gilbertoジルベール・ジルベルト AB
MeasurementsHeight: 178cm, Weight: 69kg
Birthday9 November
Hair, Curly, Long, Pompadour, Red
Eyes, Red
Body, Average Height, Pale, Teen
Clothes, Military Uniform, School Uniform
Personality, Arrogant, Ore, Rude, Short-tempered, Violent
Role, Antagonist, Assassin, Bodyguard, Mecha Pilot, Rival, Student, Villain
Engages in, Assault, Betrayal, Bullying, Cleaning, Cooking, Cursing, Unarmed Fighting
Subject of, Genetic Research, Possession
Voiced bySugisaki Kazuya


A Designer's Child, his genes are engineered to be superior to the average person. He looks down upon and enjoys abusing and mocking unmodified humans and members of the pro-AI faction.

He has had a grudge against Kou since their schooldays. In the present day he is the leader of his own private mercenary group, Dainsleif.

<hidden by spoiler settings>He pilots the Simulacrum "Noble Vertu".

Kadokura Eiji
Kadokura Eiji門倉 永二 O
AliasesOyaji, Colonel
MeasurementsHeight: 168cm, Weight: 70kg
Birthday16 August
Hair, Brown, Short, Thick Eyebrows
Eyes, Blue
Body, Adult, Pale
Clothes, Military Uniform
Personality, Confident, Ore, Pragmatic
Role, Brother-in-law, Commander, Father, Mecha Pilot, Mercenary
Engages in, Fighting, Planning, Revenge, Smoking
Voiced byNakazato Keita


Kou's father and the leader of the notorious mercenary group, Fenrir. To Kou, he is the father who abandoned his own wife to a disorder in the pursuit of riches, and they have a strained relationship.

He pilots the Simulacrum "Nidhogg".

Kirishima Isao
Kirishima Isao桐島 勲 A
AliasesMajor General
MeasurementsHeight: 180cm, Weight: 75kg
Birthday12 January
Hair, Black, Grey, Moustache
Clothes, Military Uniform, Necktie
Personality, Serious, Strict
Role, Commander, Father, Mecha Pilot, Soldier
Engages in, Fighting
Voiced byMatsuridai!


An officer in the counter-AI organisation GOAT (Global-union Observation Artificial-intelligence Team), and leader of the Asian division. His rank is Major General.

He was dispatched to Suzushiro City along with a contingent of GOAT troops to quell the growing unrest in the city. His personality is strict and obstinate, with a dignified and intimidating aura that befits a genuine military man. As a member of GOAT, he could be said to harbor anti-AI thoughts, and it would not be a stretch to say that he hated them. Though his surname makes it obvious that he is Rain's father, they are currently estranged due to an incident that occurred long ago.
<hidden by spoiler settings>
He pilots the Simulacrum "Tyrant Gigas", and is highly skilled in using it, having once been fierce rivals with Kadokura Eiji in their youth.

Kurihara Naoki
Kurihara Naoki久利原 直樹 A
MeasurementsHeight: 182cm, Weight: 69kg
Birthday10 July
Body, Young-adult
Clothes, Glasses, Suit
Items, Katana, Sword
Personality, Ambitious, Cold-hearted, Dishonest, Hardworker, Kind, Manipulative, Pretending, Sly, Watashi
Role, Mecha Pilot, Mentor, Scientist, Teacher, Villain
Engages in, Betrayal, Murder, Swordsmanship, Unarmed Fighting
Subject of, Disappearance, Insanity
Voiced byYakushiji Ken'ichi


Former lecturer and mentor to Kou and his friends. He has a deep relationship with Nanoha's parents and used to study under them. He disappeared after the events of Grey Christmas.

<hidden by spoiler settings>He was also a scientist with the Drexler Organisation working on the Assembler project.

He pilots the Simulacrum "Mirage Wolf".

MeasurementsHeight: 162cm, Weight: 47kg, Bust-Waist-Hips: 87-51-85cm
Hair, Blond, Long, Straight, Twin Tails
Eyes, Garnet, Tareme
Body, Average Height, Pale, Slim, Teen
Clothes, School Uniform
Personality, Airhead, Ignorant, Naive
Role, Artificial Intelligence
Voiced bySakura Hazuki
Minazuki Makoto
Minazuki Makoto水無月 真 A
MeasurementsHeight: 152cm, Weight: 44kg, Bust-Waist-Hips: 79-51-76cm
Birthday11 December
Hair, Short, Spiky Bangs, Violet
Eyes, Red, Tareme
Body, Average Height, Kid, Pale, Slim
Clothes, Dress, Fingerless Gloves, High Heel Sandals, Mini-dress, Naked, Ribbon Hair Tie, School Uniform, Towel
Personality, Mature, Reserved, Shy, Silent, Talkative
Role, Full Sister, Student, Younger Sister
Subject of, Bridal Carry, Bullying, Disability, Grief
Engages in (Sexual), Group Sex, Incest, Lesbian Sex, Outdoor Sex, Sex in Public Places, Twin Blowjob, Virgin Sex
Subject of (Sexual), Cunnilingus, Missionary, Seventh Posture
Voiced byKamimura Hina


Makoto is one grade lower than Kou and is Sora's younger sister, usually being doted on by her. She and Sora both move into the Kisaragi Dormitory during their school days.

She has a condition known as Cybernetics Ego Boundary Disorder, the same condition Kou's mother suffered from. This condition causes her to develop an abnormally deep connection to the virtual world, allowing her to read the thoughts of people on the Net while at the same time disclosing her own thoughts to those around her. In contrast, she is incapable of properly articulating herself outside of the Net, which once resulted in her being a common target of bullying.

<hidden by spoiler settings>She became completely mute in the real world after the events of Gray Christmas.

Minazuki Sora
Minazuki Sora水無月 空 O
MeasurementsHeight: 162cm, Weight: 47kg, Bust-Waist-Hips: 87-51-85cm
Birthday25 February
Hair, Blond, Long, Straight, Twin Tails
Eyes, Garnet, Tareme
Body, Average Height, Pale, Slim, Teen
Clothes, Bell, High Heel Sandals, Maid's Dress, Miniskirt, Necktie, Ribbon Hair Tie, Ribbon Tie, School Uniform, Tank Top
Items, Mobile Phone
Personality, Airhead, Emotional, Short-tempered, Tomboy, Tsundere
Role, Ex-girlfriend, Friend, Full Sister, Mecha Pilot, Mercenary, Not a Virgin, Older Sister, Student
Engages in, Fighting, Teasing
Subject of, Death, Piggyback Ride, Teasing
Engages in (Sexual), Blowjob, Boobjob, Group Sex, Incest, Lesbian Sex, Outdoor Sex, Twin Blowjob
Subject of (Sexual), Cowgirl, Doggy Style, Missionary, Standing Sex, Vaginal Fingering
Voiced bySakura Hazuki


Sora is in the same grade as Kou. She is also Minazuki Makoto's elder sister and dotes on her, having once beaten up someone for making Makoto cry. She often jumps to conclusions without analysing the situation, but is at heart an honest and good-natured girl with compassion for the weak. She does not get along well with Kou initially, though she eventually develops feelings for him.

<hidden by spoiler settings>During the events of Gray Christmas, Sora headed to the Drexler Organisation's headquarters to perform a favour for Kirishima Rain, but was subsequently caught in and dissolved by the escaping Assembler nanovirus while in a call with Kou.

Mohawkモホーク O
MeasurementsHeight: 193cm, Weight: 102kg
Birthday26 April
Hair, Black, Short
Eyes, Blue
Body, Adult, Muscular, Tall
Personality, Eccentric, Loyal, Ore, Strange, Taciturn
Role, Mecha Pilot, Mercenary, Native American
Subject of, Genetic Research
Voiced byZen


A member of the mercenary group Fenrir. Native American by blood and a Designer's Child, his taciturn nature and imposing physique render him frightening at first glance, but in truth he has a gentle personality and cares deeply about his comrades.

He pilots the Simulacrum "Megingjord".

Nishino Aki
Nishino Aki西野 亜季 B
MeasurementsHeight: 172cm, Weight: 51kg, Bust-Waist-Hips: 95-54-84cm
Birthday3 May
Hair, Ankle Length, Black, Grey, Parted to Side
Eyes, Hosome, Teal
Body, E+ Cup, Pale, Slim, Tall, Young-adult
Clothes, Glasses, Headband, Jacket, Jumpsuit, Mini-dress, Miniskirt, Necklace, Necktie, Pleated Skirt, Puffy Sleeves, School Swimsuit, Skirt, Tank Top, Veil, Wedding Dress
Personality, Eccentric, Genius, Lazy, Mature, Relaxed, Sloppy, Watashi
Role, Coder, Cousin, Employee, Mecha Pilot, Student, Yamato Nadeshiko
Engages in, Wedding
Subject of, Bridal Carry
Engages in (Sexual), Boobjob, Incest, Twin Boobjob, Virgin Sex
Subject of (Sexual), Missionary, Nipple Sucking, Seventh Posture, Vaginal Fingering
Voiced byIwata Yuki


Kou's second cousin who he considers as his elder sister. She is known as a "wizard" - a genius programmer in the virtual world. Kou's Simulacrum is her gift from back when she was moving into their dormitory. After the events of Grey Christmas, she takes up employment in Tachibana Seira's corporation.

Noiノイ B
MeasurementsHeight: 144cm, Weight: 33kg, Bust-Waist-Hips: 68-50-76cm
Birthday29 May
Hair, Blond, Curly, Sidehair, Waist Length+
Eyes, Green
Body, AA Cup, Kid, Pale, Slim, Younger Appearance
Clothes, Dress, Gothic, Lab Coat, Lolita, Maid's Headdress
Personality, Brave, Cynic, Genius, Mischievous, Pervert, Sly, Watashi
Role, Bisexual, Medical Doctor, Not a Virgin
Engages in, Flirting, Supernatural Cloning, Teasing
Subject of, Avoidable Rape, Gang Rape, Genetic Research, Penis Growth
Engages in (Sexual), Double Handjob, Lesbian Sex, Missionary
Subject of (Sexual), Multiple Penetration
Voiced byArisugawa Miyabi


An unlicensed doctor who has taken up residence in the slums of Suzushiro City. She operates an adult goods shop as her front. While to all outward appearances she seems to be still a child, she is in fact older than Kou. She usually wears a gothic lolita costume, but dons a white robe when engaging in medical activities.

<hidden by spoiler settings>Her youthful appearance is due in part to her being a Designer's Child.

Shizel Steinbrecher
Shizel Steinbrecherシゼル・ステインブレッシェル 
AliasesShizel Steinbrecher, Major
MeasurementsHeight: 165cm, Weight: 95kg, Bust-Waist-Hips: 89-53-86cm
Birthday22 November
Hair, Curtained, Parted to Side, Short, White
Eyes, Garnet
Body, Dark, D Cup, Slim, Young-adult
Clothes, Bell, Belt, Collar, Detached Sleeves, Jacket, Kemonomimi Headband, Knee-high Boots, Puffy Sleeves, Strapless Dress, Tail, Thigh Band, Towel, Trousers
Items, Handgun
Personality, Loyal, Serious, Strict, Watashi
Role, Cyborg, Mecha Pilot, Mercenary
Engages in, Cosplay, Fighting, Teasing
Engages in (Sexual), Blowjob, Boobjob, Footjob, Virgin Sex
Voiced byOkugawa Kumiko


Member of the mercenary group, Fenrir with the rank of Major. Solder-like in disposition and with a preference for male mannerisms, she serves as Fenrir's attack captain. She is Eiji's most trusted subordinate, having known him for close to seven years.

She pilots the Simulacrum "Hraesvelgr".

Sudou Masa
Sudou Masa須藤 雅 A
MeasurementsHeight: 172cm, Weight: 63kg
Birthday13 June
Body, Teen
Personality, Carefree, Loyal, Ore, Womanizer
Role, Detective, Friend, Mecha Pilot, Police, Student
Subject of, Other Route Death, Psychological Trauma
Voiced byFurukawa Tetsuto


Kou's best friend. After the events of Grey Christmas, he works as a CDF detective.

He pilots the Simulacrum "Shadow Wolf 'GAI'".

Tachibana Seira
Tachibana Seira橘 聖良 B
MeasurementsHeight: 169cm, Weight: 55kg, Bust-Waist-Hips: 90-61-89cm
Birthday13 February
Hair, Grey, Shoulder-length
Eyes, Amber, Unnatural Sclera
Body, E+ Cup, Pale, Slim, Young-adult
Personality, Genius, Relaxed, Watashi
Role, Aunt, Executive, Sister-in-law
Engages in (Sexual), Incest, Twin Boobjob
Voiced byOkuda Kaori


Kou's maternal aunt and the family member to whom he is most indebted to. A lady of character who founded the virtual corporation Ark Industries and built it up into the corporate giant it eventually became.

Makes an appearance

Dominion's Miko
Dominion's Mikoドミニオンの巫女 
Hair, Short, Violet
Body, Kid, Pale, Slim
Clothes, Clothing with Ribbons, Habit, Mask, Unusual Hair Ornaments
Personality, Mysterious
Role, Mecha Pilot, Member of a Sect
Engages in, Religion


A member of the radical religious organisation Dominion. Her true identity and motives are completely unknown. She first appeared in her angel-like Simulacrum during Kou's school days, interfering in an Arena fight. Though she should be a natural enemy of Kou, she appears to be avoiding direct conflict with him.

She pilots the Simulacrum "Neige-Aile".