Nagato Hiroki got drunk in college and made a mistake one night with a guy he’d never met. He’s learned his lesson from the humiliation of being taken by a man and changed to a plainer image so that he doesn’t get found out by that man in case they ever meet again. Since he’s become a working man, he hasn’t been drinking or playing around, resigning himself to a serious and quiet existence. However, one day, he realizes that the high-powered man assigned from the head office as his new boss is that man, Kurosawa Naoya, and his peaceful, ordinary life takes a sudden turn. Kurosawa says he’s been looking for him, and though Hiroki desperately tries to deny it, he’s confronted with proof that they slept together: a mole in an intimate area that he didn’t even know about…?!

With just one mistake, my life has become unbelievable.

Is this the start of a relationship full of mistakes with my boss?!