LengthLong (30 - 50 hours)
Publishers Yuzusoft
 DR Gansidui & Feimeng Diguo & Makura Castle & Meng Kong Hanhuazu & Moe Your Sister Chinese & Sakura Love & Yayoitsuki Hanhuazu & Youzi Hanhuabu
 Denpasoft & Sekai Project & Staircase Subs & The Oxford Comma is Superio... & Tiny Lily
 Alei Translations
LinksWikipedia (en), Wikipedia (ja), Wikidata, VNStat


The story begins with Mutsura Yuuto accompanying his friend on a holiday to Aqua Eden, an artificial island city where gambling and the sex industry are legal.

However, his holiday plans are laid to waste after he gets involved in a kidnapping; to make matters worse, he ends up getting turned into a vampire.

As a vampire, he can no longer leave Aqua Eden; so with nowhere else to go, he decides to enroll in a special school for vampires on the island — and thus, his new night life begins!

[Edited from Staircase Subs and Hau~ Omochikaeri!]

Romance 2.9 Fictional Modern Day Japanese Island 2.9 Defloration 2.9 Vampire Heroine 2.9 Only Virgin Heroines 2.9 Male Protagonist 2.9 Branching Plot 2.9 Student Heroine 2.9 Under the Same Roof 2.8 Comedy 2.8 ADV 2.8 Sprite Viewer 2.8 Super Deformed CG's 2.8 School Dormitory 2.8 Student Protagonist 2.8 Multiple Endings 2.7 Vampire Protagonist 2.7 Fighting Protagonist 2.6 Urban Fantasy 2.6 Episodic Story 2.6 Ejaculation Choice 2.6 Fighting Heroine 2.6 Unlockable Hero(ine) 2.5 Only Good Endings 2.5 Long Sexual Scenes 2.5 Other Perspectives 2.4 Interracial Romance 2.3 Orphan Protagonist 2.3 Skip Scenes 2.3 Side Images 2.2 Foolish Friend 2.2 Protagonist with a Face 2.2 Chuunibyou Heroine 2.2 Unarmed Combat 2.1 Russian Heroine 2.1 White Haired Heroine 2.1 Dormitory Manager Heroine 2.1 Orphan Heroine 2.1 Teasing 2.1 Unlockable Routes 2.0 Genetic Research 2.0 Kouhai Heroine 2.0 Spontaneous Power-ups 2.0 Ponytail Heroine 2.0 Magic 2.0 Voice Replay 2.0 Heroine with Ahoge 2.0 No Common Sense Heroine 2.0 Unique Routes 2.0 Waitress Heroine 2.0 Detective Work 1.9 Drug Use 1.9 Reverse Trap Heroine 1.9 Narrating Others' Thoughts 1.9 Unlockable Side Stories 1.9 Modern Tsundere Heroine 1.8 Pistol Combat 1.8 Terrorism 1.8 Twin Tail Heroine 1.8 Loli Heroine 1.8 Wedding 1.7 Sexual Content 1.7 Blowjob 1.7 Rebellion 1.7 Female Ejaculation 1.6 Sitting Sex 1.6 Fingering 1.6 Boobjob 1.5 Bokukko Heroine 1.5 Doggy Style 1.5 Missionary Position 1.4 Cunnilingus 1.4 Sniper Heroine 1.4 Homosexual Support Character 1.4 Cosplay 1.3 Late Sexual Content 1.3 Infodumping 1.3 Sixty-nine 1.3 Tsundere Heroine 1.2 Sex in Public Places 1.2 Unlockable Epilogue 1.2 Mutual Masturbation 1.1 Footjob 1.1 Masturbation 1.1 Lolicon 1.0 Orgasm Denial 1.0 Choices with 4 or More Options 1.0 Urination Fetish 0.9 Anal Sex 0.8 Donkan Protagonist 0.8 Multiple Route Mystery 0.7 Game Over 0.3 Few Choices 0.2


Mutsura Yuuto
Mutsura Yuuto六連 佑斗 
Hair, Black, Short, Spiky Bangs
Eyes, Brown, Hosome
Body, Pale, Teen
Clothes, Bondage Harness, School Uniform, Uniform
Personality, Ore, Proactive, Smart
Role, Detective, Dominant Partner, High School Student, Husband, Orphan, Roommate, Transfer Student, Vampire
Engages in, Gambling, Investigation, Teasing, Unarmed Fighting, Wedding
Subject of, Being Drugged, Genetic Research, Kidnapping, Survival
Engages in (Sexual), Anal Sex, Cowgirl, Cunnilingus, Doggy Style, Missionary, Mutual Masturbation, Reverse Cowgirl, Seventh Posture, Sex in Public Places, Sitting Sex, Sixty-nine, Vaginal Fingering, Virgin Sex
Subject of (Sexual), Blowjob, Boobjob, Footjob, Handjob, Piss Drinking


Coming to Aqua Eden just for sightseeing but turning into a vampire when involved with a kidnapping. He's shaken when he knows he's not human anymore but his adaptability help him accept it.

He's living in the school dormitory with five other members. Because of the Aqua Eden rule that a vampire must have a job, he's working in the security task force with Miu and Azusa.

Main characters

Elina Olegovna Oven
Elina Olegovna Ovenエリナ・オレゴヴナ・アヴェーン 
Hair, Ahoge, Intake, Ponytail, Sidehair, Side Tail, Spiky Bangs, Twin Tails, V Bangs, Waist Length+, White
Eyes, Red, Tsurime
Body, Pale, Slim, Teen
Clothes, Bow Tie, Bunny Dress, Cuffs, Fishnet Stockings, Jacket, Kemonomimi Headband, Leotard, Naked Ribbon, Necktie, Pantyhose, Ribbon Hair Tie, Ribbon Tie, School Uniform, Shirt, Shorts, Swimsuit, Vest
Personality, Assertive, Friendly, Mischievous, Outgoing, Pervert, Watashi
Role, Girlfriend, High School Student, Kouhai, Multilingual, Orphan, Part-time Worker, Russian, Schoolmate, Vampire
Engages in, Cosplay, Flirting, Teasing
Subject of, Human Subject Research, Teasing
Engages in (Sexual), Blowjob, Sex in Public Places, Sixty-nine, Virgin Sex
Subject of (Sexual), Bondage Sex, Cowgirl, Cunnilingus, Doggy Style, Missionary
Voiced bySuzuki Aerio


Russian vampire who transferred to Aqua Eden in order to facilitate the population process. Works as a bunny girl at Casino. Likes to tease but not good when teased herself and is always throwing vulgar jokes to discover other sexual habits.

Has the ability to control electricity and make electric waves.

Yarai Miu
Yarai Miu矢来 美羽 
Hair, Ankle Length, Antenna, Curly, Intake, Parted in Middle, Red, Sidehair, Spiky Bangs, Tiny Braid
Eyes, Amber, Tsurime
Body, Pale, Slim, Teen
Clothes, Armband, Belt, Beret, Boots, Court Shoes, Garter Belt Stockings, Gloves, High Heels, Jacket, Peaked Cap, Ribbon Hair Tie, School Uniform, Sweater, Swimsuit, Thigh-high Stockings, Uniform
Personality, Modern Tsundere, Possessive, Relaxed, Short-tempered, Watashi
Role, Classmate, Detective, High School Student, Vampire
Engages in, Cooking, Investigation, Masochism, Shopping, Teasing
Subject of, Bridal Carry, Kidnapping, Teasing
Engages in (Sexual), Blowjob, Female Ejaculation, Footjob, Mutual Masturbation, Virgin Sex
Subject of (Sexual), Cowgirl, Doggy Style, Missionary, Sitting Sex, Vaginal Fingering
Voiced byNatsuno Koori


A veteran vampire who sides with a security task force on Aqua Eden. She considers herself responsible for turning Yuuto into a vampire.

Though she gives off an air of superiority, she urges that she is not a sadist but instead a masochist. Looking at her behavior closely, she is indeed the latter.

Though she tries to tease others while being composed, she usually fails to do so and is easily embarrassed by her own teasing that involves sexual jokes or innuendos, often saying "virgin" while stuttering with a red face. She's weak when teased herself and is often countered easily by Yuuto.

Side characters

Anna Reticle
Anna Reticleアンナ・レティクル 
Hair, Short, Violet
Eyes, Blue, Tsurime
Body, Adult, Pale, Slim, Younger Appearance
Clothes, Glasses
Items, Wheelchair
Role, Grandmother, Secretary, Vampire
Subject of, Death, Disability
Engages in (Sexual), Not Sexually Involved
Voiced byKawashima Rino


The representative of the mayor and all vampires of Aqua Eden. She came to the island city at the request of Sayo to work as her assistant. She and Sayo have earned the respect of all vampires on the island.

Aragami Sayo
Aragami Sayo荒神 小夜 
Hair, Blond, Hime Cut, Sidehair, Straight, Waist Length+
Eyes, Red, Tsurime
Body, AA Cup, Kid, Pale, Slim, Younger Appearance
Clothes, Flower, Kimono, Ribbon Hair Accessory
Personality, Charismatic, Insightful, Washi, Wise
Role, Politician, Vampire
Engages in, Investigation
Subject of, Kidnapping
Engages in (Sexual), Not Sexually Involved
Voiced byAoba Ringo


The mayor of Aqua Eden. Her appearance is that of a loli, but she is actually a 500 year old vampire. She has exceptional powers even compared to others of her kind. She promotes the idea of human and vampire coexisting, and became the mayor of the island city to achieve that goal. She seems to be somewhat sensitive about her age, as she claims initially that she is only over 200 years old.

Awaji Moeka
Awaji Moeka淡路 萌香 
Hair, Bun, Curtained, Long, Parted in Middle, Pink, Sidehair
Eyes, Kitsuneme
Body, Adult, Pale, Slim
Clothes, Chinese Dress, Hair Tie
Personality, Friendly, Insightful
Role, Bartender, Hacker, Management
Engages in, Investigation
Engages in (Sexual), Not Sexually Involved
Voiced byTakaido Shizuku


The owner of the bar called Alexandrite and the boss of Rio and Hiyori. A very skilled hacker and is very good at gathering information. Often hired by the Yin Yang Bureaucrat to gather information for their investigations.

Hair, Black, Extremely Long Hair, Twin Tails
Eyes, Teal, Tsurime
Clothes, Miko's Dress, Unusual Hair Ornaments


<hidden by spoiler settings>A vampire hunter from the same village as Azusa

Kurahashi Naota
Kurahashi Naota倉端 直太 
Hair, Brown, Short, Spiky Bangs
Eyes, Amber
Body, Pale, Slim, Teen
Clothes, Suit
Personality, Friendly, Outgoing, Pervert
Role, Friend
Voiced byFurukawa Tetsuto


Protagonist's best friend from the mainland. They came to the island together in order to get laid, but ended up in a kidnapping incident. He is an idiot but is a good friend.

Masukata Hyouma
Masukata Hyouma枡形 兵馬 
Hair, Beard, Brown, Short, Spiky
Eyes, Grey, Hosome
Body, Adult, Pale, Slim
Clothes, Armband, Uniform
Personality, Blunt, Serious, Smart
Role, Executive, Teacher
Engages in, Investigation
Voiced byDebiru Katou


A teacher at the vampire school. He is also the boss of Yuuto, Miu and Azusa.

Oofusa Hiyori
Oofusa Hiyori大房 ひよ里 
Hair, Blue, Shoulder-length
Eyes, Amber, Tareme
Body, Pale, Slim, Teen
Clothes, Hairpin, Ribbon Tie, School Uniform, Swimsuit
Personality, Kind
Role, Classmate, Coworker, High School Student, Waitstaff
Engages in (Sexual), Not Sexually Involved
Voiced byKanematsu Yuka


Yuuto's classmate. A kind and gentle girl, she is a human attending the vampire academy. Works in Awaji's bar with Rio.

Sophia Ivanovna Deva
Sophia Ivanovna Deva 
Aliasesソーニャ, Sonya
Hair, Blond, Shoulder-length, Spiky Bangs, Straight
Eyes, Brown, Tsurime
Body, Adult
Personality, Friendly
Role, Researcher, Russian


A Russian vampire researcher.

<hidden by spoiler settings>She used to work at the same laboratory Elina was held. However unlike the other researchers she was friendly towards her. They meet again later in Aqua Eden where she helps Elina stay out of the hands of the Russians.