Sweet Pool begins with the return of Youji Sakiyama to his Catholic high school after being confined in hospital for a year. Suddenly he finds his life changing in unbelievable ways as his fate becomes entangled with his classmate Tetsuo Shironuma, upperclassman Zenya Okinaga and best friend Makoto Mita.

Sweet Pool begins with the return of Youji Sakiyama to his Catholic high school after being confined in hospital for a year. Suddenly he finds his life changing in unbelievable ways as his fate becomes entangled with his classmate Tetsuo Shironuma, upperclassman Zenya Okinaga and best friend Makoto Mita.