Manjiro Sano is a bonten leader,Bonten is engaged in a variety of illegal activities, such as gambling, fraud, prostitution, and murder. The organization's ruthlessness and intolerance toward traitors and informants,has made it difficult for police to obtain information about their activities, Manjiro is depicted as being controlling and abusive, specifically towards one of his star employees,Sanzu Haruchiyo,He also displays sadistic tendencies, appearing to take enjoyment in overriding Sanzu's consent.

On another day like this, he finishes his "work" with Sanzu in bed and lights a cigarette and exhales the smoke while caressing his Scar in the corner of the mouth.

"Good boy"