[MNGS-078]

Abandoned by the family, my shut-in younger brother (me) has an overly kind gyaru older sister who, whenever I call her, immediately comes to spoil me, repeatedly giving me raw creampie sex—she becomes my personal flesh onahole. Moka Haruhi

"It's okay, it's okay. If something bothers you, you can use your big sister as an onahole—." Moka, a gyaru who returned to her hometown from university, had a worry. It was that her younger brother Kazuma, whom she had always doted on, had become a shut-in. Moka, who had always spoiled Kazuma since they were kids, tries to accept his anxieties and desires. She becomes a 'woman exclusively for her younger brother' who rushes to him whenever he calls. Embracing him every day, affirming everything like a Madonna, Moka gently accepts even his desires. Eventually, their abnormal affection gradually transforms into a twisted relationship.