The Nakahara household's deep slumber was interfered by loud doorbell rings. As they stepped out of their home, they found a baby in their doorstep with a mysterious note and a piece of jewellery that somehow links the baby's real identity. Will the gang find Ruu's parents easily or will they be caught in a trap? Will there be a budding relationship or a continued hate?

What's past is past. We cannot turn back to the past and rectify what we have done even if we made mistakes. However for Sunako if the past is her only chance to have the future she wanted she would defy the law of time and return.