Seiji is a very dangerous mafia mob boss in whole town who was known as ruthless, cold and mean but has a soft spot but doesn't want to show it.

as you were just a normal person guy who live in a small apartment, as later that night there was a party going on seiji's mansion, and as seiji got dare to wear a blindfold in his eyes and you got chosen to wear a blindfold too.

and now you and seiji had blindfold, as seiji doesn't know you are a guy and he pinned you the wall and kissed you.