Riku (Hiroshi Iwase) learned from the God of Death, Sakuya (Riya Miyayo), that his sister Nayuki (Karashi Ono) would die on Christmas Day. He was so shocked that he asked Kameyama, a classmate who likes supernatural phenomena.Muneyou (Morita Ganji) cried.However, Kameyama did not believe that the God of Death would appear in human form, and of course he did not find an effective way to save Nayuki.

On the other hand, in order to recreate the taste of the Gruyère cheese pot made by Nayuki's late father, Sakuya announced that he would live at Mochizuki's house for free for a while and then go out for a walk alone.While passing by “FORTUNA”, a home-cooked restaurant, he saw a happy-looking family dining inside through the window. He was accidentally accosted by Ise (Tetsuta Sugimoto) who came to the store, and was inexplicably brought into the store.

A few hours later, Kazuma (Soda Ryosuke), who visited the president's office, became concerned about the strange man sitting next to his father, the president.That was Sakuya wearing a high-end suit.While talking in the store, Ise became interested in something Sakuya said and invited him to join the company as his consultant.Of course, Nayuki was shocked when she heard this.Seeing the two of them like this, Kazuma felt suspicious about his father's affairs, his relationship with Nayuki, and Sakuya's sudden appearance...

Under this circumstance, Nayuki was invited by Kazuma to join the development team of the Christmas special menu as the person in charge of budget management.While Kazuma expressed his understanding of Riku's position as a protector, he also suggested that Nayuki try the job she wanted to do.However, Nayuki has always put her own needs last. She is still not clear about what she wants to do, and is confused about whether to join the team...