OniAi

Akiko moves into a school dormitory with her brother Akito, when he transfers to her school; owing to her brother complex, Akiko has a crush on Akito.

Skito struggles to settle into his class and receives lessons i nthe concept of tsundere; Akito catches Akiko reading a romance novel; Akito argues with a longtime friend.

Akiko needs to change her light and asks Akito for help; Akito maintains the dorm, taking on lots of tasks; the girls disagree over whether to allow Akito to take in the laundry.

Akito brings home a dessert for Ginbe to enjoy; Akito fixes up Anastasia's room, the pair discussing her collection of stuffed animals; Arashi asks the girls to take a bath together.

Council members discuss their plans for Akito at a student government meeting; Kaoruko tells Akito to write a short story for a women's magazine.

Kaoruko reads Akito's love story and drops by the dorm to ask the others if they think Akito has a sister complex; the council reaches a decision to separate Akiko and Akito.