Itsuki finds a stone, while examining the Dolem that was defeated in the prior episode. Itsuki takes that stone and gives it as a gift to Sayoko, for Christmas. After, he goes to the beach and invites Ayato, Megu, and Haruka and the others to a Christmas Eve Party. And it begins to snow. While Megu and Kim are shopping Megu talks about Haruka, while Haruka gives Ayato gloves. And a Dolem appears to freeze everything. And RahXephon and Ayato must defeat it, but there's a problem, Sayoko is a part of it. And it's up to Ayato to save christmas for Nirai Kanai. When it looks in doubt, Ayato thinks of Haruka and the gloves he gave her, and saves the day.

B-Storyline: Quon stays in bed under her blanket, because she hates the snow.

Megu is going through a test to become a full-fledged member of TERRA. Ayato is still depressed because he's a Mulian and everyone was keeping it from him. He's going around biting people's heads off, accusing them of laughing about him behind his back. Haruka is worried about telling Ayato some secret. The two of them talk. Haruka says that it doesn't matter that Ayato is a Mulian, but he doesn't listen. Sayoko breaks it off with Iishiki, saying that he was using her, but she was also using him. She gives him a dress as a token, because she no longer has anyone to wear it for. And Quon is about to be moved to her new home. Megu passes her test and she is going to meet someone to tell him about her feelings for him. But when she goes to meet him, she finds that Souichi is already in a relationship with Kim. She's upset at first, but Kim starts to cry, so Megu forgives her. Quon asks Ayato to take her to Tokyo and he agrees, flying off in the RahXephon.

Ishiki plans to destroy the barrier around Tokyo Jupiter. Souichi is planning on tricking him somehow.

Ayato finds out from Itsuki that Haruka is in love with him, and is hurt that he didn't even know and he's been avoiding her.

Mamoru has been going through Ayato's stuff and has found out that he's close to Megu by listening to his cell phone message. He spends more time with her. He also finds Hiroko's diary, with the blue blood and the good-bye message. Later, he walks outside with Megumi. Ayato finds them. Mamoru grabs Megu around the neck and says that Ayato killed Hiroko, even though he knew she loved him. He says that Ayato will have to make a choice soon, and he will no longer be human. He punches Megu in the face.