Ane Chijo Max Heart - Season 1

Kisaragi Sarasa, an honor student known for her beauty and intelligence, has long suppressed her rising urges. The day arrives when her younger brother, Kira, is accepted into her same school. To celebrate, she invites him to her room, intending to offer him her virginity. Unaware of her intentions, he enters without suspicion. Wearing a sheer negligee, she leaps onto him, fixing him with a lustful gaze while her exposed breasts are clearly visible.