Roman

He is the main protagonist who goes by the name Nezumi Kozo at night when he fights against the injustices done against the towns people by day he is known as Mr. Helper who does a myriad of very unusual and odd jobs. Hes not very good with money since he will squander all his pay in gambling at the end of the day which is why his sister Koharu doesnt trust him to run her decorative chopstick shop for fear that he may use the shops earnings to finance his gambling habit. He has a fascination with Okuni Taiyu a well known courtesan in Shimabara. Source: ANN