This drama tells the story of Sakuya Kataoka, the god of death who came to the world for the first time, and Nayuki Mochizuki, who lost her father at a young age and dedicated her life to raising her only relative, her younger brother. The two gradually get to know each other and fall in love with each other.However, in front of these two people, what awaits them is a destiny that changes their lives.

Mochizuki Nayuki (Ono Kari) is a gentle and kind lady. She lost her father who ran a Western restaurant when she was in her second year of high school. Since then, she has been living for her only relative, her younger brother Riku (Iwase Hiroshi).Now, she works as an accountant for a restaurant chain where her father's old friend Ise Masakazu (Tetsuta Sugimoto) is the president. Working with her is her childhood playmate and Ise Masakazu's son--Kazuma Ise (Ryosuke Beasta).

One day, while Nayuki was waiting for a traffic light at an intersection, she saw a young man named Sakuya Kataoka (Riya Miyayo) who exuded a mysterious aura. He ignored the red light and walked directly to the zebra crossing, and was almost hit by a car.Nayuki rescued him at the critical moment.However, Sakuya smiled at Nayuki and moved on as if nothing had happened.Nayuki was puzzled by his behavior, and in the evening, Riku suddenly took Sakumi home.It turns out that Sakuya came back from the United States and wanted to eat the macaroni gratin made by the late Nayuki's father.When he met Lu by chance, Sakuya heard that Nayuki would cook the same dish, so Sakuya followed Lu to Nayuki's house semi-forcedly.Because it was a sudden visit, Nayuki said that she couldn't make baked macaroni right away, but Sakuya insisted on staying at Mochizuki's house and said that he could eat it tomorrow.

On the other hand, although Riku seemed to enjoy meeting Sakuya, he was actually surprised by Sakuya's rude and rude attitude when he met him, and asked him about his origins.Sakuya claims to be the god of death and can see the lifespan of a person.Although Lu couldn't believe it at first, he became interested in what he said...

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...