Nanana's Buried Treasure follows Jugo Yama, a boy who arrives on an artificial school island and meets Nanana Ryugajo, a girl who remains in his room as a ghost. He is drawn into adventures surrounding the mysterious treasures she left behind, blending school life, treasure hunting, mystery, and youth ensemble drama.

An adventure begins on an artificial school island around the treasure left by a ghostly girl.

Akechi Shonen no Kojitsuke is a light mystery centered on Kyotaro Akechi, a boy who evokes the descendant of a great detective, and the people around him. Its school-life episodes move through playful dialogue and deliberately strained deductions.

Deductions that feel almost forced turn school life into a series of small mysteries.

Jitsuroku! Edomae Sushi-bu Tanjo Hiwa was retitled SUSHI-BU! for publication. It is a school comedy about a boy whose name draws him into the Edomae Sushi Club and the commotion caused by girls pursuing sushi-making dreams.

A boy more interested in romance than sushi is swept into the chaos of the Edomae Sushi Club.

Kyujutsuka! is a light novel set in the archery department of a warrior training school founded to seal away a demon king. In a department with an awkward status beside more popular disciplines, Mika and her classmates live through lively school comedy.

Better than axes, but still awkward: the archery students live loudly while the demon king's return remains far away.