Masato, once bitter and alone, used to spend his time wreaking havoc on other people's happy relationships. But now he's too busy being a homemaker with his roommate-turned-lover, Asahi. Unfortunately, their secret relationship seems to have secrets of its own, and Masato just might find himself missing the predictability of single life.

Masato and Asahi went from odd-couple roommates to live-in lovers and are now enjoying their honeymoon phase to its fullest. But Masato can't help but feel frustrated that he's unable to share with his family and friends that Asahi is his special someone. And Asahi isn't helping matters by acting so suspiciously! Just where is he sneaking off to?!