Kyuuketsuki no Libra


Kyuuketsuki no Libra
TitleKyuuketsuki no Libra
Original title吸血姫のリブラ
LengthLong (30 - 50 hours)
Publishers Onomatope*
 MiKandi Japan
Libra of the Vampire Princess: Lycori...


Kusanagi Shuuma was living a life of an ordinary boy until one day he got suddenly abducted by one of the three vampire ringleaders - Iris Pumila. She revealed to him the secret of his ancestors - that he has vampire progenitor's blood coursing through his veins and that it is her destiny to awaken his true nature. Fortunately, Shuuma was able to escape from Pumila at that time and return to his ordinary daily life, but as a consequence of his encounter with her - his body has radically changed and he became a half-vampire. As a side effect of his sudden change, Shuuma obtained superhuman strenght and vampire's vitality but he also started having spontaneous vampiric impulses that are calling for him to suck blood of living creatures.

On top of all of that, Shuuma made a bunch of new bizarre acquaintances with random women from both human and vampire side:
- Maritima Malcolmia, the cute werewolf maid who was tasked by Shuuma's deceased father to restore the family she served to its former glory;
- Calendula Officinalis, a daughter of one of the three progenitor's families, who declared herself as a Shuuma's fiancee;
- Aoi Kamishiro, a tsundere vampire hunter sent from the Holy See's secret anti-vampire organization - the Rubina;
- Lycoris Radiata, an airheaded subordinate assassin sent by Pumila to abduct and capture Shuuma.

While dealing with all these women as well as his old female friends, Shuuma is trying to live not as a vampire, but as a human. Tangled in the midst of this web of conflicting intentions, Shuuma will have to use his vampiric powers despite his aversion to them to oppose the rising forces of evil. His ordinary everyday life of a simple boy is no more.

[Edited from Steam]

Only Virgin Heroines 3.0 Only Good Endings 3.0 Fighting Heroine 3.0 Nude Filter 3.0 Other Perspectives 2.8 Read Text Marking 2.8 Chosen Choices Marking 2.8 Male Protagonist 2.8 Branching Plot 2.8 Voice Replay 2.8 Changeable Font 2.8 Tongue-in-cheek 2.8 Protagonist with a Face 2.8 Multiple Endings 2.8 Vampire 2.8 High Sexual Content 2.8 Opponent Heroine 2.8 Student Heroine 2.8 Under the Same Roof 2.8 Foreigner Heroine 2.8 Varying Ending Songs 2.8 Transfer Student Heroine 2.7 Sexual Content 2.7 Defloration 2.7 ADV 2.7 Sensual Biting 2.7 Female Friend 2.7 Homunculus Heroine 2.7 Foolish Villain 2.7 Half-human Protagonist 2.7 Vampire Hunter Heroine 2.6 Unlockable Gallery 2.6 Protagonist with a Sprite 2.6 Energy Transfer via Sex 2.6 Defloration During Common Route 2.6 Vampire Protagonist 2.6 Vampire Heroine 2.6 Protagonist's Fiancee Heroine 2.5 Ejaculation Choice 2.5 Sword Combat 2.5 Stockings 2.5 Protagonist with Superpowered Side 2.5 Werewolf Heroine 2.5 Urination Fetish 2.5 Unlockable Sexual Content 2.4 Blowjob 2.4 Boobjob 2.4 Sword Wielding Protagonist 2.4 Sex on Roof 2.3 Scythe Combat 2.3 Half-orphan Protagonist 2.3 Fighting Protagonist 2.3 Maid Heroine 2.3 Death of Heroine 2.3 Dual Wielding Daggers 2.3 Standing Sex 2.2 White Haired Heroine 2.2 Handjob 2.2 Foolish Parent Support Character 2.2 Breaking the Fourth Wall 2.2 Anal Sex 2.2 Fingering 2.2 Sex in Classroom 2.2 Sex in Public Places 2.2 Father Support Character 2.2 High School 2.2 Outdoor Sex 2.2 Female Ejaculation 2.2 Comedy 2.1 Religious Heroine 2.1 Ladder Structure 2.0 Arrogant Heroine 2.0 Missionary Position 2.0 Hypnotism 2.0 Long Sexual Scenes 2.0 Possession 2.0 Heroine with Ahoge 2.0 Sex Involving Hypnosis 2.0 High School Student Protagonist 2.0 Unlockable Side Stories 2.0 Sacrifice 2.0 Domicile 2.0 Modern Day Japan 2.0 Airhead Heroine 2.0 Cowgirl 2.0 Sitting Sex 2.0 Seventh Posture 2.0 Urban Fantasy 2.0 Achievements 2.0 Quickie Fix Position 2.0 Loli Support Character 2.0 Anal Fingering 2.0 Music Recollection 2.0 Few Choices 1.9 Arranged Marriage 1.9 Popular Protagonist 1.8 Combat with Exotic Weapons 1.8 Violence 1.8 Adult Breast Feeding 1.8 Reverse Missionary 1.8 Erotic Spanking 1.8 Bathroom Sex 1.8 Doggy Style 1.8 Lolicon 1.6 Mind Control 1.6 Heroine with Gothic Look 1.5 Cunnilingus 1.5 Lactation During Sex 1.5 Alternate Dimensions 1.5 Group Sex of One Male and Several Females 1.4 Pregnancy Ending 1.4 Twin Tail Heroine 1.3 Sixty-nine 1.3 Tsundere Heroine 1.0 Sex in Water 1.0 Life and Death Drama 1.0 Sex Under the Necessity 0.8 Masturbation 0.7


Kusanagi Shuuma
Kusanagi Shuuma草薙 柊真 
AliasesShuuma Embroche
Hair, Brown, Short, Spiky, Spiky Bangs
Eyes, Brown
Body, Pale, Slim, Teen
Clothes, Hoodie, Necklace, Pendant Necklace, School Uniform, Shirt, Sports Shoes, Trousers, Vest
Items, Greatsword
Personality, Outgoing, Stubborn
Role, Betrothed, Classmate, Friend, Head of Household, High School Student, Master, Neighbor, Non-blood-related Brother, Orphan, Senpai, Son, Vampire
Engages in, Duel, Fighting, Massage, Reading
Subject of, Arranged Marriage, Injury, Malevolent Possession, Piggyback Ride, Shared Body, Teasing, Wounding
Engages in (Sexual), Adult Breast Feeding, Anal Fingering, Anal Sex, Bathroom Sex, Butterfly, Cowgirl, Cunnilingus, Discreet Sex, Doggy Style, Erotic Spanking, Group Sex, Missionary, Nipple Sucking, Non-blood-related Incest, Outdoor Sex, Quickie Fix, Reverse Missionary, Sensual Biting, Seventh Posture, Sex in Classroom, Sex in Public Places, Sex in School Infirmary, Sex in Water, Sitting Sex, Sixty-nine, Standing Sex, Tominagi, Vaginal Fingering, Virgin Sex
Subject of (Sexual), Blowjob, Bodysponge, Boobjob, Handjob


Shuuma lost his mother one month ago; his only blood relative. Before she passed away, he received a keepsake ring from her which he now wears as a necklace.

After coming to grips with this reality, a vampire named Iris abducts Shuuma in an attempt to "awaken" him. She claims that his deceased father was the head of Embroche: one of the original vampire families, and special within their world.

Shuuma now struggles with an impulse to suck blood, an aversion to sunlight, and a mysterious aura that is attracting many females to him. Still, he is trying to have a normal, human life. Since becoming a vampire though, many eccentric people have begun surrounding him.

[From Prefundia]

Main characters

Calendula Officinalis
Calendula Officinalisカレンデュラ・オフィシナリス 
Aliasesカレン, Karen
Hair, Blunt Bangs, Curly, Ponytail, Sidehair, Waist Length+, White
Eyes, Red, Tareme
Body, E+ Cup, Pale, Slim, Teen
Clothes, Clothing with Ribbons, Cuffs, Dress, Dress Shoes, Flower, Hairpin, Loafers, Over The Knee Socks, Pleated Skirt, Ribbon Hair Tie, Ring, Sailor Suit, School Uniform, Thigh-high Stockings
Personality, Emotional, Kind, Naive, Outgoing, Refined, Watakushi
Role, Betrothed, Classmate, Daughter, Foreigner, Friend, High School Student, Homunculus, Transfer Student, Vampire
Engages in, Fighting, Lactation, Moving
Subject of, Arranged Marriage, Avoidable Death, Death, Injury, Mind Control, Pregnancy, Resurrection
Engages in (Sexual), Blowjob, Boobjob, Female Ejaculation, Food Play, Group Sex, Masturbation, Peeing, Sex in Classroom, Sex in Public Places, Sex in School Infirmary, Virgin Sex
Subject of (Sexual), Adult Breast Feeding, Anal Fingering, Anal Sex, Cowgirl, Cunnilingus, Doggy Style, Missionary, Nipple Sucking, Quickie Fix, Sensual Biting, Sitting Sex, Vaginal Fingering
Voiced byYukimura Toa


She came to Japan from Racronia to be married to Shuuma. Calen is the 100th daughter in the Officinalis family, one of the three big households. Her marriage to Shuuma is arranged and thus for her, love is a low priority.

Calen was raised in the vampire society, and for this reason she can never understand why Shuuma doesn't try to drink from human beings. She is mature as a vampire, so she can control her impulse to feed.

When Calen first came to Japan, her naiveté was exposed because she wasn't aware of the differences between vampires and humans. Now after making a friend named Sakurako, she is enjoying her life.

[From Prefundia]

Iris Pumila
Iris Pumilaイリス・プミラ 
Hair, Ankle Length, Blond, Blunt Bangs, Sidehair, Spiky Bangs, Straight, Twin Tails
Eyes, Red
Body, Fang, Feathery Wings, Pale, Slim, Teen, Younger Appearance
Clothes, Body Ribbon, Choker, Clothing with Ribbons, Dress, Gothic, Hair Tie, High Heels, Lace-up Shoes, Lolita, Necklace, Pendant Necklace, Puffy Sleeves, Traditional Bloomers, Unusual Hair Ornaments
Items, Greatsword
Personality, Arrogant, Immature, Loner, Manipulative, Overconfident, Refined, Short-tempered, Tsundere, Watashi, Wise
Role, Famous, Foreigner, Master, Vampire, Villain
Engages in, Duel, Fighting, Flying, Planning, Teasing
Subject of, Avoidable Death, Death
Engages in (Sexual), Peeing, Virgin Sex
Subject of (Sexual), Doggy Style, Erotic Spanking
Voiced byMisonoo Mei


She is the one who "awakened" Shuuma as a vampire. Arrogant attitude, haughty language, and young-looking, but her true character is a progenitor of vampires who stayed alive for two thousand years.

Out of the three households, she is the only person still alive who never alternated.

She always interferes with the Embroche family, ever since having a fight with the first Embroche. It seems like she has a purpose in making Lycoris, her familiar spirit, sometimes attack Shuuma.

[From Prefundia]

Kamishiro Aoi
Kamishiro Aoi神代 葵 
Hair, Black, Long, Spiky Bangs, Straight, Violet
Eyes, Green
Body, E+ Cup, Pale, Slim, Teen
Clothes, Belt, Collar, Detached Sleeves, Dress Shoes, Habit, Half-Skirt, Loafers, Over The Knee Socks, Pleated Skirt, Puffy Sleeves, Ribbon Tie, Sailor Suit, School Uniform, Strapless Dress, Thigh-high Stockings
Items, Dagger, Dual-Wield Weapon, Sword
Personality, Atashi, Religious, Reserved, Serious, Stubborn, Tsundere
Role, Acquaintance, Christian Nun, Comrade, Familiar, High School Student, Homunculus, Hunter, Orphan, Roommate, Spirit, Spy, Transfer Student
Engages in, Fighting, Religion, Self-sacrifice
Subject of, Avoidable Death, Death, Malevolent Possession, Teasing
Engages in (Sexual), Blowjob, Discreet Sex, Female Ejaculation, Group Sex, Outdoor Sex, Peeing, Sex in Classroom, Sex in Public Places, Sex in School Infirmary, Virgin Sex
Subject of (Sexual), Anal Sex, Butterfly, Doggy Style, Missionary, Quickie Fix, Sensual Biting, Sitting Sex, Vaginal Fingering
Voiced byTezuka Ryouko


An agent of the Vatican's Special Service Agency "Rubina." She came to town with Lycoris, after getting information that an important vampire is there.

Aoi is one of a few people who can communicate directly with God. She has spent her whole life killing monsters, it is the top priority order assigned to her. Aoi prefers physical work over cognitive thinking and focuses on things in the moment without considering the future.

Her specialty is a combination attack with two swords, using her above average physical ability. Her purpose is freeing her partner Lycoris who became Iris's familiar spirit, so she will move together with Shuuma for a while.

[From Prefundia]

Lycoris Radiata
Lycoris Radiataリコリス・ラジアータ 
Hair, Ahoge, Red, Side Tail, Straight, V Bangs, Waist Length+
Eyes, Blue
Body, E+ Cup, Pale, Slim, Teen
Clothes, Belt, Cape, Choker, Clothing with Ribbons, Corset, Decorative Belt, Evening Gloves, Garter Belt Stockings, Gothic, High Heels, Microskirt, Mini-dress, Over The Knee Socks, Pleated Skirt, Ribbon Hair Tie, Sailor Suit, School Uniform, Tank Top, Wings
Items, Scythe
Personality, Airhead, Desu, Energetic, Funny, Idiot, Immature, Short-tempered, Watashi
Role, Comrade, Familiar, Foreigner, High School Student, Servant, Spy, Transfer Student, Vampire, Villain
Engages in, Cosplay, Duel, Fighting
Subject of, Malevolent Possession, Teasing
Engages in (Sexual), Blowjob, Boobjob, Female Ejaculation, Group Sex, Outdoor Sex, Peeing, Sex in Classroom, Sex in Public Places, Virgin Sex
Subject of (Sexual), Anal Fingering, Anal Sex, Cunnilingus, Doggy Style, Missionary, Multiple Penetration, Quickie Fix, Seventh Posture, Sitting Sex, Vaginal Fingering
Voiced byTachibana Mao


Formerly Aoi's partner and an agent from Rubina, but now is Iris's familiar spirit. Since then, she holds a big scythe named "Crepusculefaux" which was provided by Iris. She is constantly coming up to Shuuma and causing trouble but retreats many times after Shuuma resists.

Lycoris is always high-tension and acts like an idiot. <hidden by spoiler settings>Everyone thinks this is just the evil effect of becoming a vampire, but it's not true. Unexpectedly though, people realize she was the brains behind daredevil Aoi when they were still a team.

[From Prefundia]

Maritima Malcolmia
Maritima Malcolmiaマリティマ・マルコルミア 
Aliasesマリ, Mari
Hair, Parted in Middle, Pink, Shoulder-length, Sidehair, Straight, Tiny Braid, Twin Braids
Eyes, Amber, Tareme
Body, Fang, Furry Tail, Kemonomimi, Pale, Slim, Teen, Younger Appearance
Clothes, Garter Belt Stockings, Knee-high Socks, Loafers, Maid's Dress, Maid's Headdress, Naked Apron, Pleated Skirt, Ribbon Hair Accessory, Sailor Suit, School Uniform, Thigh-high Stockings
Personality, Blunt, Emotional, Food Lover, Friendly, Funny, Kind, Obedient, Watashi
Role, Classmate, Foreigner, Friend, High School Student, Maid, Orphan, Servant, Transfer Student, Werewolf
Engages in, Cleaning, Cooking, Fighting, Sports, Teasing
Subject of, Piggyback Ride, Teasing
Engages in (Sexual), Bathroom Sex, Blowjob, Bodysponge, Female Ejaculation, Group Sex, Handjob, Outdoor Sex, Peeing, Sex in Public Places, Sex in Water, Sixty-nine, Virgin Sex
Subject of (Sexual), Anal Fingering, Anal Sex, Butterfly, Cunnilingus, Doggy Style, Quickie Fix, Reverse Missionary, Sensual Biting, Seventh Posture, Sitting Sex, Standing Sex, Tominagi, Vaginal Fingering
Voiced byShindou Mayumi


A werewolf maid who used to serve the Embroche family. She is not a familiar spirit so she can exist even after Shuuma's father is gone. While Mari was searching for Shuuma to revive the Embroche family again, Iris found her and began using her as a gofer.

She is disappointed that Shuuma is not dependable as either a master or vampire. Still, she is serving him as a houseworker, hoping the Embroche family will someday be revived. Mari says whatever she thinks and sometimes it is too direct and poisonous towards her master Shuuma, basically though she is obedient and nice. She gets wolf ears and a tail when surprised.

[From Prefundia]

Side characters

Doumyouji Sakurako
Doumyouji Sakurako道明寺 櫻子 
Hair, Brown, Orange, Ponytail, Shoulder-length, Sidehair, V Bangs
Eyes, Amber, Tareme
Body, Pale, Slim, Teen
Clothes, Knee-high Socks, Loafers, Pleated Skirt, Ribbon Hair Tie, Ribbon Tie, Sailor Suit, School Uniform
Personality, Airhead, Energetic, Friendly, Outgoing, Strange
Role, Classmate, Friend, High School Student, Vampire
Engages in, Fighting, Teasing
Subject of, Malevolent Possession
Engages in (Sexual), Group Sex, Outdoor Sex, Peeing, Sex in Public Places, Sex on Roof, Virgin Sex
Subject of (Sexual), Cowgirl, Quickie Fix, Sensual Biting, Standing Sex
Voiced byYuzuki Sachi


Shuuma's classmate, playmate, and an inspiring person. Shuuma has known her for a long time, but she is not his childhood friend. After Shuuma pulled a prank on her, Sakurako became a "mayoler" (a mayonnaise lover) who thinks it's normal to drink mayonnaise straight.

Sakurako has many friends and is sociable. Naturally, she became friends with Calen who has a different standard from normal life, also with Aoi who is not a good conversationalist.

She is a rare person in that she talks with Shuuma in a natural way, even though every other female in the school is falling in love with him.

Lycoris turned her into a vampire by sucking her blood, causing Sakurako to attack Shuuma.

[From Prefundia]

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Lotus Embrocheロートス・アンブロシ 
Eyes, Hidden
Body, Intangible
Personality, Pervert, Wise
Role, Father, Ghost, Husband, Master, Vampire
Engages in, Self-sacrifice
Subject of, Death
Engages in (Sexual), Not Sexually Involved


Shuuma's (deceased) father and the former Progenitor of the Embroche family. <hidden by spoiler settings>A piece of his soul inhabits a ring Shuuma's mother gave to him before her passing and he occasionally speaks to Shuuma through it to give his commentary on various situations.

He is also a lolicon.

Make an appearance

Aconite Embroche
Aconite Embrocheアコナイト・アンブロシ 
Hair, Red, Short, Spiky, Spiky Bangs
Eyes, Red, Tsurime
Body, Pale, Slim, Teen
Clothes, Hoodie, Sports Shoes, Trousers
Items, Greatsword
Personality, Arrogant, Grandiosit, Overconfident
Role, Alter Ego, Antagonist, Head of Household, Master, Vampire
Engages in, Duel, Fighting, Kidnapping, Malevolent Possession
Engages in (Sexual), Not Sexually Involved


Aconite was the very first vampire leader and the main progenitor of the Embroche vampire family tribe and he was also the first to wield the legendary Deese Morte greatsword. Once an extremely powerful vampire, he is long thought to be dead but there are some indications that he still might be alive in some form through the blood of his descendants.