Oniichan Asa made Zutto Gyutte Shite!
お兄ちゃん朝までずっとギュッてして!
Synopsis
This story is based on an erotic game by Tinkle Position. The protagonist is the older brother of four younger sisters. When he was younger, he had severe asthma. As a result, the family established a routine where one of the sisters would sleep with him each night, switching to a different sister the following day. One day, their parents—who are researchers—ordered a demonstration of their newest experiment, "Improve his immunity by hugging him." The instructions read: "Hug a little sister affectionately for 10 seconds every day before going to bed♪." He decided to hug the sister he would be sleeping with that night with even more affection than she could ever imagine.
Background
Oniichan Asa made Zutto Gyutte Shite! is based on the 2018 visual novel of the same title by Tinkle Position.
