Makoto is a 24-year-old company employee who lives her life avoiding attention so as not to be disliked. But her life changes one night when an accident erases her memory! The only clue is a ring in her handbag she clearly meant for a man. When three men appear, one claiming to be her ex-lover, another her only male friend, and the third her soulmate, the mystery begins. Who is the ring for? And who is she? Makoto goes in search of true self and true love in this fun, romantic-comedy mystery.