When the parents of three children died in the accident, Hotaka was 18 years old. Izumi is 16 and the youngest Mei is only 13. He was lucky, he was of age and he inherited the house. He sheltered his brother and sister and has been living with them for 5 years. Hotaka is smart, calm, collected but kind. Izumi is cheerful, playful, kind and energetic. Brothers love each other and just adore their little sister and always take care of sis. They have a grandmother: a greedy and angry woman.