A new customer applies to Rena who runs a company of her husband and nursing care helper. His name is Osamu Saito... In fact, her father was the leader of the gang, Sakaguchi-gumi, and was killed by Saito-gumi leader Osamu Saito in the conflict at the time. - With the memories of that day revived, Rena hides her true identity and approaches Saito for revenge, but what was there was a gentle and weak old man who was completely different from what she imagined...
