Born as the second son of three brothers, Tatsuya. To his mother Yumi, he seemed like a quiet child who didn't assert himself... One spring, his older brother got a job and moved out, while his younger brother entered a boarding school on a sports recommendation. His father was transferred to a single posting, and life suddenly changed, leaving Yumi living alone with her son. The once lively home became quiet, and Yumi felt a sense of loss. Seeing his mother like this, Tatsuya felt an inexplicable jealousy and tried to regain the maternal love he had never exclusively possessed...
