Do S Ane to Boku no Hounyou Kankei


TitleDo S Ane to Boku no Hounyou Kankei
Original titleドS姉とボクの放尿関係
LengthVery short (< 2 hours)
DeveloperErotica Peach
Publishers Erotica Peach


Kei is living together with his elder sister, Rei. Their parents are working abroad so they are left at home, just the two of them. But instead of helping each other, Rei just bully her younger brother pressing all the household chore to him and doing some other nasty stuffs when she is at bad mood. She also bully him at school like taking away his lunch and etc. Kei, just as a nice guy he is, however never complains and accept all of the cruel things done to him. But all of these are about to change... One day at school, a foreigner girl starts coming to their school as a new transfer student. She gets along well with Kei like she know him long before.

[from kaorinusantara]

Main characters

Andou Rei
Andou Rei安藤 玲 
MeasurementsHeight: 165cm, Bust-Waist-Hips: 87-59-82cm
Hair, Brown, Intake, Sidehair, Waist Length+
Eyes, Hosome, Red
Body, Average Height, Pale, Slim, Teen
Clothes, Bikini, Glasses, Jeans, Miniskirt, Ribbon Tie, Sailor Suit, Tank Top, Thigh-high Stockings
Personality, Arrogant, Brocon, Modern Tsundere, Smart
Role, Full Sister, High School Student, Older Sister, Student Council Secretary
Engages in, Netori
Subject of, Netorare, Voyeurism
Engages in (Sexual), Facesitting, Female Ejaculation, Footjob, Incest, Masturbation, Mutual Masturbation, Peeing, Peeing on Others, Sex in Public Places, Voyeurism
Subject of (Sexual), Bukkake, Cunnilingus, Doggy Style, Reverse Spitroast, Tominagi
Voiced byKasumi Ryou


A 3rd year at Shirogane Private School. Condescending and cold, people around her try to keep some distance.

She's smart, and is working as a secretary in the student council, so she's not exactly unpopular. Treats her little brother Kei harshly, that even his classmates feel sympathy for him. She beats him and even orders him to buy sanitary napkins for her late at night.

Both parents aren't home, and thus all house chores are pushed to Kei. One day, Rei who was utterly treating Kei like her toy, was unintentionally opposed by Kei and wet herself as a result, thus revealing a bit of her masochist side. On the contrary, Kei awakened a little of his sadist personality, and started "training" his sister by making her pee in public.

[Translated from Getchu]

Linda Steigmeyer
Linda Steigmeyerリンダ・スティッグマイヤー 
MeasurementsHeight: 177cm, Bust-Waist-Hips: 95-56-89cm
Hair, Blond, Curtained, Long, Parted in Middle, Sidehair, Twin Tails
Eyes, Blue, Tareme
Body, Average Height, E+ Cup, Fang, Pale, Slim, Teen
Clothes, Bikini, Cheerleading Uniform, Crop Top, Miniskirt, Ribbon Tie, School Uniform, Strapless Shirt
Personality, Deredere, Obedient
Role, American, Cheerleader, Childhood Friend, Foreign Exchange Student, High School Student
Engages in, Netori
Subject of, Netorare, Voyeurism
Engages in (Sexual), Blowjob, Handjob, Peeing, Peeing on Others, Sex in a Vehicle, Voyeurism
Subject of (Sexual), Butterfly, Cowgirl, Quickie Fix, Reverse Spitroast, Sitting Sex
Voiced byAihara Mizuki


An American exchange student who came to the protagonist's and his sister's school. A neighbor of Kei and Rei when they were still living in America. She's a childhood friend the siblings used to play with. She's a cheerleader back in a high school in America, so she joined the cheer club while studying abroad as well.

As she was assigned to the same class as Kei, Kei was tasked to look after her, and seeing how Rei always oppresses Kei, she felt sympathy for him. While trying to comfort Kei, she soon fell into Rei's agenda.

Fairly smart, but her airhead character and broken English hides the fact. Confronts Rei after her maternal instinct towards Kei was provoked.

[Translated from Getchu]