Single mother Sumire has raised her daughter Mao, the only reminder of her late husband. One day, Mao brought a man home. Just the other day, she was still a child in Sumire's eyes... Sumire couldn't hide her shock. 'Boyfriend,' said Mao. Sumire was flustered with confusion and surprise. The man smirked and suddenly attacked Sumire while Mao wasn't looking.
