Onii-chan Daisuki!


This image has been flagged as Not Safe For Work.

Show me anyway

(This warning can be disabled in your account)

TitleOnii-chan Daisuki!
Original titleお兄ちゃん大好き!
DeveloperTanuki Soft
Publishers Tanuki Soft


Osamu was born a siscon. He has taken care of his imouto Rio from the moment she was born, as well as his imouto Mio since she joined his family from his father’s remarriage. Every day he was on cloud nine being together with his two imoutos.

Finally came the day when they started attending the nearby school that he also went to. When he saw them in their school uniforms for the first time, his heart started beating faster as he gazed upon their slightly matured figures. Could it be love? Yes, he had begun to have a (sexual) affection for them.

[From Hau~ Omochikaeri!]

Hide spoilersShow minor spoilersSpoil me!Show sexual traits

Main characters

Wataya Mio
Wataya Mio綿谷 美桜 
MeasurementsHeight: 151cm, Weight: 42kg, Bust-Waist-Hips: 77-57-80cm
Hair, Long, Side Tail, Violet
Eyes, Amber
Clothes, School Uniform, Swimsuit
Personality, Assertive, Curious, Hardworker, Kind
Role, Step Sister
Subject of, Pregnancy
Engages in (Sexual)
Subject of (Sexual)
Voiced byKarasuma Sora


The step sister of the protagonist and Rio. Her mother married there father.

Wataya Rio
Wataya Rio綿谷 里桜 
MeasurementsHeight: 150cm, Weight: 40kg, Bust-Waist-Hips: 72-55-74cm
Hair, Blond, Shoulder-length
Eyes, Blue
Clothes, School Uniform
Items, Book
Personality, Brocon, Sharp-tongued, Stubborn
Role, Full Sister, Younger Sister
Subject of, Pregnancy
Engages in (Sexual), Inbreeding


The protagonist blood sisier