Omae de Nakya Dame Mitai If It's Not You.

Synopsis

For Suwa, a hunk like him needs a pretty girl by his side. Theoretically. But in fact, he’s going out with Fujisaki, four-eyed and average looking. It’s just a temporary relationship for Suwa, only until he finds a girlfriend... But then, why does he feel so guilty when he takes an interest in someone else? (Source: MU)