Ikeuchi Hikaru works for a design company in Tokyo and has a fiancé Okugawa Kota. However, her life suddenly changes with the appearance of her ex-boyfriend Moriyama Shin (Otanin Ryohei). She had once loved him to death but he vanished all of a sudden after telling her that they are breaking up. The feelings that Hikaru has tried to suppress are rekindled when she is reunited with Shin, who is in Tokyo