Living under one roof are three sisters: Sakura Manabe, who is 16 years old, Momiji, who is 12 years old, and Botan, who is 27. Botan has been shouldering the responsibility of providing for the family of three, as their 19-year-old brother, Kashiwa, has been pursuing higher education for the past two years. However, after a sudden decision, Kashiwa decides to return home but as a woman with a new identity. Consequently, Sakura and her siblings have to adjust to a new dynamic in their sisterhood.
