After his father went off on a personal mission, Wahei Hinata, who worked at Aida House, said goodbye to his dissatisfying home and relocated to a new apartment. On his journey, he unexpectedly encountered his half-siblings- 16-year-old Hotaka Kunimae and her seven-year-old twin sisters, China and Chise. Their father had assigned Wahei to take care of them, leaving him no other options. As he spent more time with his new family, Wahei learned that a house is built with architecture but it's the presence of family and memories that transform it into a home.
