Summary:

Tsubasa, the distinguished son of a famous musician, has a secret SM kink that he struggles to comes to terms with. When he chances upon Masaki, a man who meets people with his fists, will Tsubasa finally be able to understand his own desires? 

Spin-off of "Ore No Oniku-chan"

Notices:

[ATTENTION] This manga contains the following topics: VIOLENCE DURING SEX; BRUISES FETISH; PAIN FETISH; 
If you aren't comfortable with any of those listed, please DON'T READ.