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Oyako Rankan


TitleOyako Rankan
Original title母娘乱館
LengthLong (30 - 50 hours)
DeveloperAlice Soft
PublishersAlice Soft
Ras Alaghe
Jiutoumiao Hanhuazu & SSTM
LinksWikipedia (ja), Wikidata, VNStat
Shops» JP¥ 6076 @ DLsite (jpn)
Related anime[DB] Oyako Rankan The Animation (OVA, 2013)


After a fire destroyed their village and killed their parents, Mamoru and his elder sister Kotone were adopted into the opulent Kamishiro household. Years later Mamoru now works for the family as a butler. Yet the Kamishiro household holds a dark secret: its riches and influence stem from a ritualistic orgy known as the "Feast". Kamishiro ladies are fabled for their amorousness, fertility, and the unmatched quality of their offspring, and during the Feast influential men from all around pay handsomely to inseminate these peerless wombs.

Meanwhile the bedridden Kamishiro head Ikki faces exile if he can't impregnate his wife, the lovely Saya, with the next heir by the end of the month. Pressured by his clients and his scheming lieutenant Shinohara, Ikki calls a new Feast with Kotone as the offering. With clients swarming to the manor like locusts, Mamoru finds himself plunged into a nightmare. Can he protect the family he holds dear--Kotone, Saya, and his younger stepsister Ririko--from the ravages of the Feast until the end of the month?

[From Sanahtlig's Corner]

Western-style Mansion 3.0 Protagonist's Older Sister as a Heroine 3.0 Gauge Display 3.0 Pregnancy Bad EndingS 3.0 Protagonist's Younger Sister as a Heroine 3.0 Netorare 3.0 Impregnation 2.9 Protagonist with a Face 2.8 Non-blood-related Brother/Sister IncestS 2.7 High Sexual Content 2.6 Bad Ending(s) 2.6 Map Movement 2.5 Netorare Type B 2.5 Avoidable Netorare 2.5 Side Images 2.5 Non-blood-related Mother/Son IncestS 2.5 Pregnancy 2.5 Protagonist's Non-blood-related Sister as a HeroineS 2.4 Multiple Endings 2.4 Date Display 2.4 Mystery 2.3 Modern Day Japan 2.3 Under the Same Roof 2.3 ADV 2.3 Male Protagonist 2.3 Other Perspectives 2.3 Romancing a Family 2.3 Protagonist's Non-blood-related Mother as a Heroine 2.2 Stockings 2.2 Defloration 2.0 Non-blood-related Father/Daughter IncestS 2.0 Lots of Choices 2.0 Countryside 2.0 Mother Support Character 2.0 Adult Breast Feeding 2.0 Gynecologist Chair 2.0 Traditionalist Family 2.0 Quickie Fix Position 2.0 Oneesan-type Heroine 2.0 Sexual Blindfold 2.0 Pregnant Sex 2.0 Harem Ending 2.0 Heroine with Sexual Experience 2.0 Adult Heroine 2.0 Butler Support Character 2.0 Protagonist's Full Sister as a Heroine 2.0 Married Heroine 2.0 Heroine with Big Breasts 2.0 Oyakodon 2.0 Voice Replay 2.0 Siscon Protagonist 2.0 Naked Sprites 2.0 Condoms 1.9 Group Sex of One Male and Several Females 1.8 Group Sex of One Female and Several Males 1.8 Cunnilingus 1.8 Cowgirl 1.8 Sex Involving DrugsS 1.8 Missionary Position 1.8 Internal Exhibition of Sex 1.8 Standing Sex 1.7 Doggy Style 1.6 Lactation During Sex 1.6 Multiple Penetration 1.5 Outdoor Sex 1.5 Flashback 1.5 Multiple Route Mystery 1.5 Netorare Type A 1.4 Long Sexual Scenes 1.4 Bad Endings with Story 1.4 Heroine with Kimono 1.3 Bondage 1.3 Sitting Sex 1.3 Unavoidable Heroine RapeS 1.3 Non-blood-related IncestS 1.2 Erotic Mind ControlS 1.2 Dating Simulation 1.2 Vaginal Masturbation 1.0 Twin Blowjob 1.0 Sounds of Copulation 1.0 Sixty-nine 1.0 Intercrural Sex 1.0 Bukkake 1.0 Naked Heroine with Apron 1.0 Object Insertion 1.0 Inflation 1.0 Clothing Damage 1.0 Defloration by Others 1.0 Reverse Cowgirl 1.0 Sex in Water 1.0 Pregnancy EndingS 1.0 Spoons 1.0 Gokkun 1.0 Twin Boobjob 1.0 Facesitting 1.0 Single Boobjob 1.0 Single Handjob 1.0 Single Blowjob 1.0 Pissing 1.0 Anal Sex 1.0 Vaginal Fingering 1.0 Vaginal Gaping 1.0 Gang Bang 1.0 Heroine with Pubic Hair 1.0 Yandere HeroineS 1.0 Spreader Bar 1.0 Heroine with Glasses 1.0 Maid Heroine 1.0 Blood-related IncestS 0.6 Blood-related Mother/Son IncestS 0.6 Blowjob 0.5 Boobjob 0.3 Masturbation 0.3 Blood-related Brother/Sister Incest 0.2 Fingering 0.2


2012-07-2718+Oyako Rankan - H Scene Trial Edition
2012-09-1418+Oyako Rankan - Download Edition
2012-09-2818+Oyako Rankan - Package Edition
2015-09-2918+Oyako Rankan - Prologue Patch (unofficial patch)
2019-02-1318+Muniang Luanguan (unofficial patch)


Full character list

Character summary

FunakiMain character
Kamishiro IkkiMain character
Kamishiro KotoneMain character
Voiced by Misaki Tomomi
Kamishiro RirikoMain character
Voiced by Sakurai Mirei
Kamishiro SayaMain character
Voiced by Itou Moe
ShinoharaMain character
YabuiMain character
JoujiSide character
Kaneda KyoukoSide character
Voiced by Imai Mitsuki
Kaneda MasatoSide character
KoideSide character
OonoSide character
ShinjiSide character
YukinoSide character

User stats

Vote stats
238 votes total, average 7.94 (good)
Recent votes(show all)


Popularity: ranked #553 with a score of 3.16

Bayesian rating: ranked #199 with a rating of 7.64


Oyako Rankan - Package Edition

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