Kyoudai Complex
キョーダイコンプレックス
A 20-year-old virgin, Okada Naoto, is the older brother to Machi, a younger sister who lacks understanding of chastity. Machi frequently teases her brother about his inability to find a girlfriend and makes suggestive offers. Despite being the dominant sibling, Machi is fixated on someone. The two high schoolers navigate a close relationship filled with sibling dynamics, both at home and in school.