Dono Ko to Asobu?

A collection of five hentai stories centered on young girls and their playful, often mischievous encounters. Each chapter presents a different scenario, from a girl with a small chest who catches a cold and receives care, to a sweet yet teasing exploration of indulgence. The narratives follow innocent-looking characters as they engage in intimate and erotic situations, blending childish curiosity with adult themes.

The stories range from a little sister modeling a school swimsuit for her older brother, to a stray cat girl finding a home and forming a bond with her new owner. Another tale involves a cat girl who has already been adopted, continuing her playful and affectionate relationship. Throughout, the focus remains on the tender and sometimes naughty interactions between the characters, set in everyday or slightly fantastical settings.