A white rabbit with a split personality met a black rabbit. The two rabbits walked hand in hand. But one day the white rabbit was taken away. The black rabbit met many friends while looking for her, and gradually seemed to have forgotten something. The black rabbit shook his head. When we meet again - Calvino: Mr. Zao, please don't laugh at me, after all, I have no heart now. Hinata Zao: I know... But who are you? Well, people who have no intention lose their hearts. Do I still have the qualifications to love you if I lose my heart?