Yoko Otaki

Junkichi is the son of a rich landlord, while Koyuki is the daughter of a poor lumber worker. The mismatched pair soon finds love, and against his father's wishes, Junkichi decides to run away with Koyuki to start a new life. But when Junkichi is called off to war, they make a pledge to sing the song of engagement everyday until they are able to reunite

Sinopsis Cuando el segundo sucesor de la familia Tachibana sigue las reglas del mundo Yakuza y trata de asesinar al jefe del Grupo Okad, accidentalmente herirá a su hija y la dejará ciega. A partir de aquí se desencadenará una sangrienta y cruel venganza.