Ritsu, his father, Yui and her mother were happy in each other's company. That happiness disappeared in a car accident, when Yui's mother died behind the wheel. Ritsu's father also lost his life in the accident, and Ritsu himself was injured. He left Yui's life... until two months ago. After her mother's death, Yui had been taken in by the head of the Hosho family. She and Ritsu have a chance run-in. Riddled with guilt, Yui doesn't know how to react as Ritsu takes her in his arms and says, "I'm glad to see you." The two grow closer as the bonds lost in time awaken once again. They join as one, the blissful old days seemingly upon them. However...