Megumi

Megumi is Ayami younger sister and Boku-kun elder sister, according to him she's a bitchy gal just as she looks. Like her elder sister, she awaits for her brother, whom she has the habit to tease in a lewd way and to make jokes of him because he's a virgin, to come back to their family home from his first year at the school dorm. When it comes to get Boku's attentions, she's somewhat in a silent, self established competition with her sister.