Suisei Ginka


Suisei Ginka
TitleSuisei Ginka
Original titleスイセイギンカ
AliasesAquatic Mercury
LengthMedium (10 - 30 hours)
DeveloperAkatsuki Works & Applique
Publishers Akatsuki Works & Applique
LinksWikipedia (ja), Wikidata, VNStat


Ten years ago, there was an accident during the transport of chemicals in the port city of Mizuho, as well as a series of murders, but it is now just a part of history. At that time, Izana suddenly became separated from her best friend Tetsuo, and she never could come to terms with his disappearance.

This summer Tetsuo suddenly reappeared before the overjoyed Izana. However, he revealed to her a terrible truth…

[From Hau~ Omochikaeri!]

Main characters

Hoshii Seika
Hoshii Seika星井 青香 
MeasurementsHeight: 163cm, Bust-Waist-Hips: 90-60-89cm
Hair, Black, Side Tail
Eyes, Amber, Grey
Body, E+ Cup, Pale, Slim, Teen
Clothes, Bikini, Decorative Belt, Naked in Front of an Audience, Pendant Necklace, School Uniform
Items, Handgun
Personality, Arrogant, Smart, Stoic, Strict
Role, Daughter, High School Student, Ojousama, Superhuman, Younger Sister
Engages in, Swimming
Subject of, Kidnapping, Malevolent Possession
Engages in (Sexual), Bathroom Sex, Blowjob, Boobjob, Handjob, Outdoor Sex, Sex on Beach, Sixty-nine, Virgin Sex
Subject of (Sexual), Cowgirl, Cunnilingus, Doggy Style, Missionary, Nipple Sucking, Reverse Missionary, Sexual Fantasy, Sitting Sex, Standing Sex
Voiced bySakurano Hiyo


Seika is Izana's best female friend and more than a little bit prickly toward anyone who approaches her with ulterior motives (and because of Izana's easy manner and physical beauty, that is pretty common. She was raised by a strict father who sees her only as a convenient object to augment his own ambitions for the family line, which is a lot of the reason why she is so prickly in general. Her sole point of softness is Izana, whom she would probably do anything for.

[Edited from Fuwanovel]

Jougasaki Momo
Jougasaki Momo城ヶ崎 桃 
MeasurementsHeight: 160cm, Bust-Waist-Hips: 82-56-85cm
Hair, Bun, Parted to Side, Pink, Shoulder-length, Spiky Bangs
Eyes, Green
Body, C Cup, Young-adult, Younger Appearance
Clothes, Bikini Skirt, Hairpin, Necklace, Swimsuit, Tank Top
Items, Handgun
Personality, Friendly, Funny, Kind, Lazy
Role, Detective, Domestic Partner, Non-blood-related Sister, Non-human
Engages in, Drinking, Smoking, Swimming
Subject of, Infidelity, Kidnapping
Engages in (Sexual), Bathroom Sex, Handjob, Off Screen Sex, Outdoor Sex, Sex on Beach, Virgin Sex
Subject of (Sexual), Cowgirl, Missionary, Quickie Fix, Sitting Sex, Standing Sex
Voiced byKawashima Rino


"Oh... I'm out of tobacco, I can open beer now because I am not motivated!".

Momo is Tetsuo's guardian/oneesan/coworker. She is a heavy-drinker and a heavy-smoker and she is actually thirty, though she looks twenty. She is also a brilliant (genius-level) individual as well as being highly perceptive when it comes to people in general. She and Tetsuo have lived most of the last ten years around one another, and they know each other about as well as it is possible to know another person without being them.

[Edited from Fuwanovel]

MeasurementsHeight: 175cm
Hair, Brown, Parted to Side, Ponytail
Eyes, Amber
Body, Olive
Personality, Arrogant, Pretending, Sly, Strange
Role, Antagonist, Legal Guardian, Management, Superhuman, Wealthy
Engages in, Planning, Unarmed Fighting
Subject of, Avoidable Death, Homicide
Voiced byKawamura Masato


"We are not centre of justice, but we are also not even an evil organization planning to conquer the world!".

Maria's father and also the director of Tatsunagi Pharmaceutical -- a company that toppled over the transport truck of chemicals ten years ago.

Souma Izana
Souma Izana相馬 いざな 
MeasurementsHeight: 156cm, Bust-Waist-Hips: 86-58-88cm
Hair, Blond, Grey, Tiny Braid, Waist Length+
Eyes, Grey, Violet
Body, D Cup
Clothes, Apron, Bikini, Contact Lenses, Hair Ribbon, Ribbon Hair Tie, School Uniform, Skirt, Swimsuit
Personality, Friendly
Role, Childhood Friend, Daughter, Friend, High School Student, Honor Student
Engages in, Martial Arts, Swimming
Subject of, Kidnapping, Possession, Shared Body
Engages in (Sexual), Bathroom Sex, Boobjob, Virgin Sex
Subject of (Sexual), Cowgirl, Cunnilingus, Missionary, Quickie Fix, Sitting Sex, Standing Sex
Voiced bySawasawa Sawa


Tetsuo's childhood friend. After their reunion, there were able to figure out what they were thinking about each other. She is an excellent student, and also helps out at her mother's coffee shop.

A positive thinker just like Tetsuo. She has a cheerful personality, but shows a slovely side to the people close to her. Her speciality is kickboxing.

"Hey, did you fall in love at first sight with the grown-up figure of my childhood friend who has back for the first time in ten ye... Hey, what I said right now!".