Koneko Doumei


TitleKoneko Doumei
Original title仔猫同盟
AliasesCatgirl Alliance
LengthMedium (10 - 30 hours)
Publishers Contents Traffic Co., Ltd. & Sekilala
LinksWikipedia (en), Wikidata, VNStat


I am Tachibana Eiji, a regular transfer student. Everything was going fine at my new school, but I was in for a shock one day when I discovered the class president Rumi and my classmate Natsuki having sex in the school infirmary! Not only that, it turned out that Rumi was a futanari - a hermaphrodite with something between her legs I wasn't expecting to see. That evening when I got home and got a call from Rumi to come and meet her, I knew it couldn't be good - but the first thing she said was, "won't you join us?"

According to her story she'd been a futanari from birth, and because of this had an unquenchable curiosity regarding the ways of sex. She'd gotten to the point where having Natsuki as a sex partner wasn't enough... she told me she was planning to train our classmate Shizuko as a sex slave! Shizuko, a neat freak famous for her disike of her male classmates, had let it slip to Rumi that she was secretly very curious about sex as well...

Faced with no other options, I had no choice but to accept Rumi's request to join her and her comrades in their erotic schemes... and from that moment I was bound to these cute and "ecchi" kitties in their catgirl alliance!

[From G-Collections]

Short Sexual Scenes 3.0 Anal Sex 3.0 Excessive Semen 3.0 Sex in Front of an Audience 3.0 Multiple Endings 2.8 Promiscuity 2.7 Male Protagonist 2.6 Only Virgin Heroines 2.5 Bukkake 2.5 Triple Blowjob 2.5 Masochist Heroine 2.5 Sex in Classroom 2.5 Bisexual Heroine 2.5 Sexual Blindfold 2.5 Futanari Heroine 2.5 Nukige 2.3 Naked Sprites 2.3 High Sexual Content 2.2 School 2.2 Branching Plot 2.2 Bondage 2.1 Sexual Content 2.1 Kyonyuu Heroine 2.0 Gang Bang 2.0 Pettanko Heroine 2.0 Dark Skinned Heroine 2.0 Unlockable Harem Ending 2.0 Straight Shotacon 2.0 Perverted Protagonist 2.0 Public Masturbation 2.0 Group Sex of Multiple Females and Males 2.0 Emotionless Heroine 2.0 Vibrators 2.0 Mischievous Heroine 2.0 Defloration 2.0 Cunnilingus 2.0 Sex in Public Places 2.0 Dog Cosplay 2.0 Futanari on Female 2.0 More Than Seven Endings 2.0 Siscon Support Character 2.0 Group Sex of Several Females 2.0 Transfer Student Protagonist 2.0 Doggy Style 2.0 Male on Futanari 2.0 Modern Day 2.0 Double Penetration (Group Sex) 2.0 Brother Support Character 2.0 Airhead Heroine 2.0 Deredere Heroine 2.0 Modern Day Japan 2.0 Heroine with Pubic Hair 2.0 Early Sexual Content 2.0 Heroine with Sexual Experience 2.0 Nekomimi Heroine 2.0 Nympho Heroine 2.0 Shota Support Character 2.0 ADV 2.0 Handjob 2.0 Non-blood-related Sister/Sister Incest 2.0 Cross-dressing 2.0 Lots of Choices 2.0 Voice Replay 2.0 Heroine with Tan Lines 2.0 Multiple Penetration 2.0 Fingering 2.0 Colored Name-tags 2.0 Quickie 2.0 Cat Cosplay 2.0 Only Good Endings 2.0 High School Student Protagonist 2.0 Seventh Posture 2.0 Lots of Event CGs 2.0 Group of Friends 2.0 Sitting Sex 2.0 Pregnancy Ending 2.0 Blowjob 2.0 Orphan Heroine 1.8 Androphobic Heroine 1.8 Outdoor Sex 1.8 Super Deformed CG's 1.8 High School 1.8 School Life Comedy 1.7 Loli Heroine 1.7 Urination Fetish 1.7 Student Protagonist 1.6 Student Heroine 1.6 Group Sex of One Male and Several Females 1.6 Lesbian Sex 1.5 Comedy 1.5 Consensual Erotic Humiliation 1.5 Tomboy Heroine 1.5 Female Domination 1.5 Dildos 1.5 Exhibitionism 1.5 Student Club President Heroine 1.5 Erotic Spanking 1.5 Student Club Member Heroine 1.5 Consensual Group Sex of One Female and Several Males 1.5 Voyeurism 1.5 Gang Rape 1.5 Female Ejaculation 1.5 Body Piercing 1.5 Petplay 1.5 Anal Toys 1.5 Wax Play 1.5 Rape Involving Drugs 1.5 Suspension Bondage 1.5 Class President Heroine 1.4 Bullying 1.3 Sexual Devices 1.3 Romance 1.2 Cosplay 1.1 Intercrural Sex 1.0 Support Character with Ahoge 1.0 Impulsive Protagonist 1.0 Sister/Sister Romance 1.0 Heroine with Ahoge 1.0 Cowgirl 1.0 Sex in Water 1.0 Heroine with Spats 1.0 Genital Piercing 1.0 Albino Heroine 1.0 Missionary Position 1.0 Twin Tail Heroine 1.0 Heroine with Tights 1.0 Long Common Route 1.0 Standing Sex 1.0 Heroine with Old-style Bloomers 1.0 Production of Pornography (Amateur) 1.0 Clamps (BDSM) 1.0 Food Play 1.0 Bathroom Sex 1.0 Remote-controlled Vibrator 1.0 Hidden Vibrator 1.0 Friendship Ending 1.0 Lesbian Rape 1.0 Kissing Scene 1.0 Foolish Protagonist 1.0 Unavoidable Heroine Rape 1.0 Reverse Missionary 1.0 Blowbang 1.0 Quickie Fix Position 1.0 Naked Heroine with Apron 1.0 Deepthroat 1.0 Slice of Life Comedy 1.0 Defloration by Others 1.0 Masturbation 1.0 Inumimi Heroine 1.0 Buttjob 1.0 Non-blood-related Brother/Sister Incest 1.0 Hero(ine) Selection 1.0 Heroine with Zettai Ryouiki 1.0 Cats 1.0 Gaping 1.0 Enema 1.0 Romancing a Family 1.0 Balls Sucking 1.0 Underweight Heroine 0.4 Student Club 0.2


Tachibana Eiji
Tachibana Eiji橘 英司 
Hair, Brown, Pubic Hair, Short, Spiky, Spiky Bangs
Eyes, Brown
Body, Average Height, Large Penis, Pale, Teen
Clothes, Belt, Jacket, School Uniform, Shirt, Trousers
Items, Mobile Phone
Personality, Honest, Outgoing
Role, Bad Student, Classmate, Dominant Partner, Health Committee Member, High School Student, Living Alone, Sex Friend, Submissive Partner, Transfer Student
Engages in, Bondage, Graduation, Teasing
Subject of, Birthday Celebration, Teasing, Voyeurism
Engages in (Sexual), Anal Fingering, Anal Sex, Bathroom Sex, Bondage Sex, Butterfly, Cowgirl, Cunnilingus, Doggy Style, Erotic Spanking, Group Sex, Handjob, Missionary, Mutual Masturbation, Nipple Sucking, Outdoor Sex, Public Masturbation, Quickie Fix, Reverse Missionary, Seventh Posture, Sex in Public Places, Sex in School Infirmary, Sex in Water, Sitting Sex, Spit-roast, Standing Sex, Tominagi, Vaginal Fingering, Voyeurism
Subject of (Sexual), Balls Sucking, Blowbang, Blowjob, Deepthroat, Handjob, Intercrural Sex, Pink Rotor, Triple Blowjob


Modest and nondescript, Eiji Tachibana is the unlikely protagonist of the game. A recent transfer student to his school, his lonesome life becomes convoluted when his curiosity leads him to become apart of a sexual, underground student group disguised as a harmless club. Despite his careless behavior, Eiji is an honest, friendly and especially introspective person, able to sense the mood of other people; though he himself is as easily readable. Eiji prefers the indoors and enjoys watching television.

[From Wikipedia]

Main characters

Azumi Shizuko
Azumi Shizuko安曇静子 
Hair, Black, Curly, Intake, Pubic Hair, Sidehair, Spiky Bangs, Waist Length+
Eyes, Brown
Body, E+ Cup, Pale, Slim, Teen
Clothes, Bandages, Bikini, Collar, Dog Tags, Headband, Kemonomimi Headband, Miniskirt, Necktie, Over The Knee Socks, Paw Gloves, Pleated Skirt, School Uniform, Tail, Thigh-high Stockings, Uwabaki
Personality, Deredere, Docile, Kind, Refined, Shy, Smart
Role, Classmate, Health Committee Member, High School Student, Honor Student, Popular, School "Go Home Club" Member, Submissive Partner, Yamato Nadeshiko
Engages in, Cooking, Cross-dressing, Flirting, Seduction, Teasing
Subject of, Being Drugged, Fainting, Gang Rape, Non-consensual Porn Filming, Pregnancy, Sexual Harassment, Teasing
Engages in (Sexual), Balls Sucking, Casual Sex, Gaping, Group Sex, Intercrural Sex, Lesbian Sex, Mutual Masturbation, Outdoor Sex, Peeing, Public Masturbation, Sex in Front of an Audience, Sex in Public Places, Sex in School Infirmary, Sex with Others, Triple Blowjob, Virgin Sex, Voyeurism
Subject of (Sexual), Anal Beads, Anal Fingering, Anal Plug Tail, Anal Sex, Bondage Sex, Bukkake, Butterfly, Cunnilingus, Doggy Style, Double Penetration (Group Sex), Huge Insertion, Missionary, Multiple Penetration, Nipple Sucking, Petplay, Pink Rotor, Reverse Missionary, Rope Bondage, Seventh Posture, Sexual Blindfold, Standing Sex, Tominagi, Vaginal Fingering, Vibrator
Voiced byOohana Don


Eiji's classmate. She sits next to him in class, and seems like a kind enough person. Due to trauma suffered in a sexual harassment incident in the past she became an obsessive-compulsive neat freak, and was violently ill-disposed toward members of the opposite sex; recently she has largely recovered and is fine with men around. Her personality has a cool and high-handed side, but once she takes to someone (boy or girl) she becomes quite intimate. Regarding sex she knows what she's read in magazines and heard from the idle chatter of other girls, which sparked her interest in the subject. She has many hidden interests in this area, which it's up to Eiji to find out!

[From J-List]

Misawa Natsuki
Misawa Natsuki三澤 奈月 
Hair, Ahoge, Blunt Bangs, Braid, Grey, Ponytail, Pubic Hair, Sidehair, Twin Tails, Waist Length+
Eyes, Red
Body, AA Cup, Genital Piercing, Pale, Slim, Teen
Clothes, Collar, Dress, Fishnet Stockings, Hair Tie, Jacket, Latex, Mouth Gag, Naked Apron, Necktie, No Panties, Old Type School Swimsuit, One Piece Swimsuit, Pantyhose, Rope Bondage Harness, Rubber Band With Beads, School Uniform, Sport Bloomers, Sports Shoes, Thigh-high Stockings, Traditional Bloomers, Trousers
Personality, Airhead, Blunt, Clumsy, Docile, Hardworker, Kind, Loyal, Nature Lover, Rude, Sharp-tongued, Siscon, Smart, Stoic, Strange, Taciturn
Role, Bisexual, Classmate, Dominant Partner, Health Committee Member, High School Student, Honor Student, Non-blood-related Sister, Older Sister, Orphan, Servant, Sex Friend, Submissive Partner
Engages in, Bondage, Cooking, Cross-dressing, Masochism, Rape, Sadism
Subject of, Fainting, Nymphomania, Pregnancy, Voyeurism
Engages in (Sexual), Ball-cupping, Bathroom Sex, Blowjob, Casual Sex, Cunnilingus, Deepthroat, Female Ejaculation, Gaping, Group Sex, Lesbian Sex, Nipple Sucking, Outdoor Sex, Peeing, Sex in Front of an Audience, Sex in Public Places, Sex in School Infirmary, Sex in Water, Triple Blowjob, Virgin Sex
Subject of (Sexual), Anal Fingering, Anal Sex, Bondage Sex, Bukkake, Butterfly, Clamps (BDSM), Cowgirl, Doggy Style, Double Penetration (Group Sex), Enema, Erotic Spanking, Forced Public Nudity, Hidden Vibrator, Multiple Penetration, Pink Rotor, Quickie Fix, Spit-roast, Vaginal Fingering, Vibrator, Wax Play, X-Cross
Voiced byImai Kaoru


Eiji's classmate. Taken into Rumi's family by her father as a child, Natsuki was raised as his second natural daughter. However, her fierce devotion to Rumi has given her the appearance more of her maid than her sister. At a glance she's the inscrutable, mysterious type. She doesn't talk much and doesn't let her emotions show, but due to the development of her body at Rumi's hand when she enters "H" mode she undergoes a complete change, to a brazen, dirty talking girl. Because Rumi has focused on her anal training, Natsumi is still a virgin. She alternates between sadistic and masochistic personalities at Rumi's command. She is initially discontent with Eiji and his blossoming friendship with Rumi, viewing it as a rivalry; over the period of her acquaintance with him however, she grows fond of and closer to him herself. Given her openness to partners, Natsuki is also bisexual.

[From J-List and Wikipedia]

Takahata Rumi
Takahata Rumi高畑 るみ 
Hair, Bob Cut, Pubic Hair, Short, Sidehair, Spiky Bangs, Straight, Violet
Eyes, Blue
Body, Average Height, Futanari, Pale, Slim, Small Penis, Tanline, Tanned, Teen
Clothes, Armband, Band-aid, Bell, Bikini, Bondage Harness, Collar, Corset, Decorative Belt, Garter Belt Stockings, Kemonomimi Hat, Kemonomimi Headband, Kemonomimi Hood, Latex, Loose Socks, Miniskirt, Necktie, Old Type School Swimsuit, Paw Gloves, Pleated Skirt, Sailor Suit, School Uniform, Shimapan, Short Shorts, Spats, Sweater, Tail, Thigh-high Stockings, T-shirt
Personality, Assertive, Carefree, Clumsy, Friendly, Ignorant, Low Self-esteem, Manipulative, Mischievous, Pervert, Shy, Sleepyhead, Tomboy, Whimsical
Role, Bisexual, Classmate, Class President, Dominant Partner, Health Committee Member, High School Student, Honor Student, Non-blood-related Sister, Not a Virgin, Older Sister, Popular, Sex Friend, Submissive Partner, Wealthy
Engages in, Blackmail, Bondage, Cooking, Drugging, Masochism, Non-consensual Porn Filming, Rape, Sadism
Subject of, Bullying, Nymphomania, Sexual Harassment, Voyeurism
Engages in (Sexual), Anal Fingering, Anal Sex, Blowjob, Bondage Sex, Doggy Style, Double Penetration (Group Sex), Erotic Spanking, Food Play, Group Sex, Handjob, Missionary, Mutual Masturbation, Nipple Sucking, Outdoor Sex, Sex in Front of an Audience, Sex in Public Places, Sex in School Infirmary, Sex in Water, Sex with Others, Spit-roast, Triple Blowjob, Vaginal Fingering, Virgin Sex
Subject of (Sexual), Anal Fingering, Anal Plug Tail, Anal Sex, Blowjob, Bondage Sex, Bukkake, Cunnilingus, Doggy Style, Erotic Spanking, Handjob, Nipple Sucking, Petplay, Quickie Fix, Sexual Blindfold, Sitting Sex, Spit-roast, Suspension Bondage, Triple Blowjob, Vaginal Fingering, Vibrator, Wax Play
Voiced byIzumi Ayaka


The president of Eiji's class. A bright, high-spirited and popular girl, her father is a newly rich self-made man and her family is tremendously wealthy. Thanks to her personality this upper class "princess" status of hers doesn't particularly show, though. Born as a futanari, she got over her dislike for her body at an early age and came to be curious about all things sexual. With Natsuki as a partner she's been researching her sexuality almost nightly in the school infirmary. While already fully sexually experienced, she is constantly in search of further stimulus and pleasure. While Rumi is a naturally effervescent and outspoken co-ed, she can at times be particularly authoritative, sadistic and intolerant, especially during group activities.

[From J-List and Wikipedia]

Side character

Takahata Masayoshi
Takahata Masayoshi高畑真美 
Hair, Ahoge, Blue, Curtained, Parted to Side, Short, Straight
Eyes, Blue
Body, Pale, Phimosis, Short, Slim, Small Penis, Teen, Trap
Clothes, Clothing with Ribbons, Collar, Corset, Miniskirt, Necktie, Panties, School Uniform, Thigh-high Stockings, Trousers, Vest
Personality, Clumsy, Docile, Effeminate, Opposite Gender Voiced, Shy, Siscon, Timid
Role, Health Committee Member, High School Student, Kouhai, Popular, Schoolmate, Sex Friend, Step Brother, Submissive Partner, Younger Brother
Engages in, Cross-dressing
Subject of, Blackmail, Teasing
Engages in (Sexual), Anal Sex, Consensual Phone Sex, Cunnilingus, Group Sex, Non-blood-related Incest, Sex in Front of an Audience, Sex in School Infirmary, Sitting Sex, Triple Blowjob
Subject of (Sexual), Anal Sex, Blowjob, Pink Rotor
Voiced byShinomiya Kaoru


Rumi's step-brother, a year younger than the protagonist. His frail constitution, slender build and pale skin make him look remarkably girlish. In love with his sister, in the past she caught him stealing her panties to use for dubious purposes and since then has been blackmailed into her service. He is now at her beck and call in her quest for sexual stimulation. He's still a virgin in all senses of the term, but is experienced in "petting level" play along with Natsuki and Rumi.