Menchi Kitte, Koi.

A manga artist named Isaki unintentionally calls out to Hiyotaka, a scary-looking former delinquent.She gets him to model for her on the spot, but although she thinks she'll never see him again, she accidentally leaves behind something that will spark a connection between them.

Their romance may be mismatched, but their meeting brings color to each other's lives.

(Source: Comic-Walker)