Report an issue on this page.

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
Play timeVery long (50h from 43 votes)
DeveloperTeam Baldrhead
Sekai Project & Shadowwolf
Sekai Project & Baldr Sky Hanhuazu
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]

BetrayalS 3.0 Few Choices 3.0 Future 3.0 Other PerspectivesS 3.0 Politics 3.0 Psychological Trauma 3.0 Science Fiction 3.0 Unavoidable Death of HeroineS 3.0 Amnesia 2.9 Multiple Route Mystery 2.9 Combat Capable Friends 2.9 Virtual Reality 2.8 ADV 2.8 Unlockable Event 2.8 Normal Scene Recollection 2.8 Enforced Playing Order 2.7 Cyberpunk 2.7 Action Game 2.7 Flashback 2.7 Protagonist's Childhood Friend as a Heroine 2.7 Built-in Flowchart 2.7 In Medias Res 2.7 Mecha 2.7 Multiple Endings 2.7 Unlockable Bonus Content 2.7 Male Protagonist 2.6 NanomachinesS 2.6 Soldier Heroine 2.6 Soldier Protagonist 2.6 Artificial Intelligence 2.6 Unlockable Routes 2.6 New Game Plus 2.6 Protagonist with Voice Acting 2.6 Unlockable Choices 2.6 Military 2.6 Mecha Combat 2.6 Carryover Save 2.5 Mecha Pilot Heroine 2.5 Mecha Pilot Protagonist 2.5 Beat 'em Up 2.5 Built-in Encyclopedia 2.5 Difficulty Settings 2.5 Protagonist with a Face 2.5 Mercenary Protagonist 2.5 Religious Organization 2.5 Mad Scientist Support CharacterS 2.4 Corporations 2.4 Mercenary Support Character 2.3 More Than Seven Endings 2.3 Romance 2.3 Side Images 2.3 Bad Endings with Story 2.3 Track Display 2.3 Childhood Promise 2.3 Slums 2.3 Cyborg HeroineS 2.2 Mercenary Heroine 2.2 Unique RoutesS 2.2 Playtime Counter 2.2 Madness 2.2 ApocalypseS 2.2 Shooter Game 2.2 Early Branching Plot 2.1 Intrigue 2.1 Priest Support Character 2.1 The Holiday Season 2.1 Hard Science Fiction 2.1 Arcology 2.1 Protagonist with Sexual ExperienceS 2.1 CloningS 2.0 Completion Status Indicator 2.0 Friendship 2.0 Genetic ResearchS 2.0 HomicideS 2.0 Late Sexual Content 2.0 Life and Death DramaS 2.0 Loli Support Character 2.0 Slice of Life 2.0 Thriller 2.0 Time StopS 2.0 Tomboy Heroine 2.0 University Student Protagonist 2.0 Unlockable Side Stories 2.0 War 2.0 Alternate Starting PointS 1.9 Infodumping 1.8 Revenge 1.8 Skip Scenes 1.7 JealousyS 1.7 Heroine with Sexual Experience 1.6 Discrimination 1.5 Death of HeroineS 1.5 Skippable Gameplay 1.3 Game Over 1.1 Mind ControlS 1.1 Sexual Content 1.1 Lolicon 1.0 Genius Heroine 0.8 Blowjob 0.4 Only Avoidable Rape ScenesS 0.3

Hide spoilersShow minor spoilersSpoil me! | Show sexual traits


Kadokura Kou門倉 甲B
MeasurementsHeight: 174cm, Weight: 64kg
Birthday7 March
HairBrown, Shaggy, Short
BodyPale, Slim, Teen, Young-adult
ClothesBelt, Coat, Necktie, School Uniform, Shirt, Trousers, Uniform
PersonalityAtheist, Emotional, Ore, Proactive, Protective, Stubborn
RoleCousin, Friend, Hacker, Half-orphan, Lieutenant, Mecha Pilot, Mercenary, Nephew, Popular, Son, Student, Teammate
Engages inBridal Carry, Daydreaming, Drinking, Fighting, Investigation, Planning
Subject ofAmnesia, Bridal Carry, Fainting, Headache, Hospitalization, Injury
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桐島 レインAB
AliasesSecond Lieutenant
MeasurementsHeight: 171cm, Weight: 53kg, Bust-Waist-Hips: 91-52-83cm
Birthday24 July
HairBlond, Blunt Bangs, Parted in Middle, Sidehair, Waist Length+
EyesBlue, Tsurime
BodyPale, Slim, Young-adult
ClothesBeret, Boots, Dress, Maid's Dress, Military Uniform, Mini-dress, Miniskirt, Necktie, Shirt, Thigh-high Stockings, Torn Clothing, Unusual Hair Ornaments, Vest
PersonalityKind, Loyal, Proactive, Refined, Serious, Stoic, Watashi
RoleHacker, Mecha Pilot, Mercenary
Engages inFighting, Infiltration, Planning
Subject ofPiggyback Ride
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>

Nagisa Chinatsu渚 千夏O
MeasurementsHeight: 163cm, Weight: 49kg, Bust-Waist-Hips: 90-52-84cm
Birthday27 October
HairPink, Ponytail, Short, Sidehair
EyesAmber, Tareme
BodyMedium Breasts, Pale, Slim, Teen
ClothesBelt, Bikini, Capri Pants, Hair Tie, Jumpsuit, Leotard, Maid's Dress, Military Uniform, Mini-dress, School Uniform, Sport Bloomers, Sports Shoes, Tank Top, T-shirt
PersonalityAtashi, Energetic, Outgoing, Tomboy
RoleFriend, Student
Engages inAthletics, Flirting, Soccer, Sports, Swimming, Teasing, Unarmed Fighting
Subject ofDisappearance
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>

Wakakusa Nanoha若草 菜ノ葉A
MeasurementsHeight: 156cm, Weight: 43kg, Bust-Waist-Hips: 81-53-77cm
Birthday19 October
HairGreen, Parted to Side, Short, Side Tail
EyesTareme, Violet
BodyPale, Slim, Teen
ClothesCoat, Hoodie, Maid's Dress, Overall, Panties, Pantyhose, Rubber Band With Beads, School Swimsuit, Turtleneck Shirt
PersonalityEmotional, Idealist, Jealous, Kind, Naive, Pacifist, Sensitive, Timid, Watashi
RoleChildhood Friend, Student
Engages inCooking, Gardening
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>

Side characters

Anan Yoshio阿南 よしおA
MeasurementsHeight: 166cm, Weight: 93kg
Birthday20 September
HairBlack, Short, Sideburns
BodyMole, Overweight, Ugly
ClothesNecktie, Suit
PersonalityCoward, Pervert, Sly, Washi
RoleMayor, Politician


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グレゴリー神父
MeasurementsHeight: 177cm, Weight: 86kg
ClothesHabit, Robe
PersonalityEccentric, Manipulative, Religious, Sly, Talkative, Violent, Watashi
RoleAntagonist, Head of a Sect, Priest, Villain
Engages inRebellion, Religion
Subject ofDelusion (obsolete), 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>

Gilbert Gilbertoジルベール・ジルベルトAB
MeasurementsHeight: 178cm, Weight: 69kg
Birthday9 November
HairLong, Pompadour, Red, Wavy
BodyPale, Teen
ClothesMilitary Uniform, School Uniform
PersonalityArrogant, Ore, Rude, Short-tempered, Violent
RoleAntagonist, Rival, Student, Villain
Engages inAssault, Bullying, Cleaning, Cooking, Cursing
Subject ofGenetic Research
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>

Kadokura Eiji門倉 永二O
AliasesOyaji, Colonel
MeasurementsHeight: 168cm, Weight: 70kg
Birthday16 August
HairBrown, Short, Thick Eyebrows
BodyAdult, Pale
ClothesMilitary Uniform
PersonalityConfident, Ore, Pragmatic
RoleBrother-in-law, Commander, Father, Mecha Pilot, Mercenary, Widow
Engages inAssault, Investigation, Planning, 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桐島 勲A
AliasesMajor General
MeasurementsHeight: 180cm, Weight: 75kg
Birthday12 January
HairBlack, Grey, Moustache
ClothesMilitary Uniform, Necktie
PersonalityPragmatic, Serious, Strict
RoleCommander, Father, Soldier, Widow
Engages inInvestigation, Planning
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>

Kurihara Naoki久利原 直樹A
MeasurementsHeight: 182cm, Weight: 69kg
Birthday10 July
ClothesGlasses, Suit
PersonalityAmbitious, Hardworker, Kind, Watashi
RoleMentor, Scientist, Teacher
Subject ofDisappearance
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>

Minazuki Makoto水無月 真A
MeasurementsHeight: 152cm, Weight: 44kg, Bust-Waist-Hips: 79-51-76cm
Birthday11 December
HairShort, Spiky Bangs, Violet
EyesRed, Tareme
BodyKid, Pale, Slim
ClothesDress, Fingerless Gloves, High Heeled Sandals, Mini-dress, Ribbon Hair Tie, School Uniform, Towel
PersonalityMature, Reserved, Shy
RoleFull Sister, Student, Younger Sister
Subject ofBridal Carry, Bullying
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>

Minazuki Sora水無月 空O
MeasurementsHeight: 162cm, Weight: 47kg, Bust-Waist-Hips: 87-51-85cm
Birthday25 February
HairBlond, Long, Straight, Twin Tails
EyesGarnet, Tareme
BodyPale, Slim, Teen
ClothesBell, High Heeled Sandals, Maid's Dress, Miniskirt, Necktie, Ribbon Hair Tie, Ribbon Tie, School Uniform, Tank Top
ItemsMobile Phone
PersonalityAirhead, Emotional, Short-tempered, Tomboy, Tsundere
RoleFriend, Full Sister, Older Sister, Student
Engages inTeasing
Subject ofPiggyback Ride, Teasing
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>

MeasurementsHeight: 193cm, Weight: 102kg
Birthday26 April
HairBlack, Short
BodyAdult, Muscular, Tall (obsolete)
PersonalityBrave, Eccentric, Friendly, Loyal, Ore, Strange, Taciturn
RoleMecha Pilot, Mercenary, Native American
Engages inFighting
Subject ofGenetic 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西野 亜季B
MeasurementsHeight: 172cm, Weight: 51kg, Bust-Waist-Hips: 95-54-84cm
Birthday3 May
HairAnkle Length, Black, Grey, Parted to Side
EyesHosome, Teal
BodyBig Breast Sizes, Pale, Slim, Tall (obsolete), Young-adult
ClothesGlasses, Headband, Jacket, Mini-dress, Miniskirt, Necktie, Pleated Skirt, Puffy Sleeves, School Swimsuit, Skirt, Tank Top
PersonalityEccentric, Genius, Lazy, Mature, Relaxed, Sloppy, Watashi
RoleCoder, Cousin, Employee, Student, Yamato Nadeshiko
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.

MeasurementsHeight: 144cm, Weight: 33kg, Bust-Waist-Hips: 68-50-76cm
Birthday29 May
HairBlond, Sidehair, Waist Length+, Wavy
BodyKid, Pale, Slim, Small Breast Sizes, Younger Appearance
ClothesDress, Garter Belt Stockings, Gothic, Lab Coat, Lolita, Maid's Headdress
PersonalityBrave, Cynic, Genius, Mischievous, Pervert, Sly, Watashi
RoleMedical Doctor
Engages inFlirting, Teasing
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>

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, D cup
Birthday22 November
HairCurtained, Parted to Side, Short, White
BodyDark, Slim, Young-adult
ClothesBelt, Jacket, Knee-high Boots, Towel, Trousers
PersonalityLoyal, Serious, Strict, Watashi
RoleMajor, Mecha Pilot, Mercenary
Engages inFighting, Teasing
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須藤 雅A
MeasurementsHeight: 172cm, Weight: 63kg
Birthday13 June
PersonalityCarefree, Loyal, Ore, Womanizer
RoleDetective, Friend, Mecha Pilot, Police, Student
Engages inDrinking
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橘 聖良B
MeasurementsHeight: 169cm, Weight: 55kg, Bust-Waist-Hips: 90-61-89cm
Birthday13 February
HairGrey, Shoulder-length
EyesAmber, Unnatural Sclera
BodyAdult, Pale, Slim
PersonalityFamily Oriented, Genius, Protective, Relaxed, Strange, Watashi
RoleAunt, Executive, Full Sister, Sister-in-law
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.