Kawaisa Amatte Nanika ga Hyakubai

Mikuni Renji had always been serious in every love relationship. It was his bad luck to meet with people who only used him for satisfaction. Ichinomiya Shinobu, the sadistic younger flower shop prince who was his company supplier, fell in love with the Mikuni through constant teasing. Trouble came when Ichinomiya met Mikuni and his ex-partner on the street. Would Mikuni get dumped again?
Source: MU