[DeepL Translation - needs review] Introduction to Volume 1: Rikka Matsuura attends a junior high school affiliated with Kiriryo University. Her older sister, Koki, and older brother, Yu, are on their own, and she lives with Saku, who is the same age as her, their father, and mother. They thought they were a normal family, but in fact, they seem to be quite complicated...?
(Translator: DeepL)
