Chronicles of the Going Home Club

Big Sis and Little Bro / Street Poems / Big Sis and Friends / The Nameless Landmark (1x8)

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It's revealed that Natsuki has a brother two years younger than her. Intrigued, the other girls start peppering Natuski with questions about him. Sakura makes the members of the Going Home Club write poems to be sold on the street around the station. The club members come to Natsuki's house to meet her little brother. Sakura asks the question "Which is the main body?" and points to Natsuki's cowlick.