Seiji was born the second son in a family of three brothers. From her mother's perspective, Reika, she had the impression that she was an easy-going child, but... One spring, my older brother went to work and lived alone, while my younger brother went to boarding school. My father went away from home and his life changed abruptly, Seiji and Reika began living with their mother and their child. The lively house suddenly became quiet, and Reika felt lost... Seeing her mother like that, Seiji felt disappointed and empty, he tried to regain his mother's love, which he had not been able to monopolize until now.