Hiro and Miyako take their relationship to the next level, causing Kei to melt down emotionally. Renji pushes on with the work, despite Chihiro's change in personality and the pain it causes him.

In the past, Yuko reveals to Yu a knife she always carries given to her by her older brother if she wanted to kill him. Yu takes the knife and confronts Yuko's brother, but Yu does not go through with it, and gets beat up. In the present, Mizuki seeks advice from Kei and Yu on how to approach Kuze, but when she goes to his house, he acts very negatively towards her, and berates her with many questions. After she leaves, Kuze experiences intense chest pains, and after struggling with his pills, and managing to break the bottle open, he takes some of the pills and recovers from the attack while saying he still wants to live.

In the past, Yu and Yuko run away together and eventually find a place to stay while Yu works. Yu runs into Yuko's brother one day and Yu stays out late that night thinking about what he said to him which causes Yuko to worry and go out looking for him. Yuko runs into her brother and he asks her if she wants to go home, and she nods in agreement. In the present, Yu and Nagi talk with Kuze, and try to make him see reason, but he only serves to get Yu and Nagi angry at him for what he says. Nagi tells Mizuki that she is probably the only one left who can save Kuze.

Everyone is spending time with their loved ones during Christmas, whether in Japan or Australia. Kuze survived the surgery and continues to live on with Mizuki. Yu hears from Nagi that Hiro said he talked with Yuko, and Yu heads back to Japan to meet up with her in the church. The two spend the rest of the night together, first at the church, and then at the school's roof to watch the sunrise. Yu and Yuko say their goodbyes and Yuko disappears, leaving behind a white feather.