Hayato is looking forward to his class reunion. But his former classmates complain about work and brag about their travels, while he only talks about his brothers. He feels left behind by life...
The Yuzuki family consists of four brothers: Hayato, Mikoto, Minato, and Gakuto. The eldest son, Hayato, happily lives every day to the fullest. There are tears, laughter and excitement at home, at school, and in the neighborhood!