- Photo shop owner Masahito (Takenouchi Yutaka) and his wife Keiko (Mizuna Miki) have seemingly the perfect life, living in a small town rural town with son Eiji (Hirota Ryoheu), daughter (Yoshida Riko), and a golden retriever. All of this disappears in the blink of eye when Eiji and Erina are involved in a tragic car accident. In the dark tunnel, Erina walks towards the light, and Eiji is left on earth to carry the guilt of failing to protect his litle sister. Erina's death bears a grave toll on Eiji and his parents, and their previous happiness suddenly slips away. Eiji decides that he must do all he can to save his family from falling apart.