At last, Takako Hara (Yuka), 32 years old, and Kotaro Ozu (Takahiro Miura), 7 years younger, kissed each other at the beach. The difference in age is also a kiss that overcomes the hesitation that Kotaro has a fiancé ... but while he is happy. When the two were kissing at the beach, Ryoko, a student in her homeroom class, broke and became a big problem.
Ryoko's mother is furious that she couldn't get in touch with her homeroom teacher, Takako, and her deputy homeroom teacher, Kotaro. In addition, Kotaro's rant made it difficult for the two to be together, creating a subtle atmosphere in the staff room. In particular, the position of the newly appointed Kotaro was in jeopardy, 'Is that person suitable for an educational place? If I hear Mr. Ozu's inappropriate story again, I will appeal to PTA to quit.' My mother tells me.
She said, 'I shouldn't have forgotten to be a teacher.'-Takako, who was so keenly aware, tells Kotaro, 'Let's stop.' As an older person, it's my job to end this relationship. She told her that it was a sign of her love to end, and Takako said goodbye to her.
One month has passed and Christmas is approaching one month later. Only one day for those who enjoy it, and a long period for those who suffer.
Kotaro's lover Kaori (Mayuko Kawakita) told Kotaro that she would spend the year-end and New Year holidays at her study abroad destination. 'Actually, I want to go home too. It's hard to study. I'm getting disgusted.' Kotaro wasn't convinced by Kaori's irresponsible words, and I felt that my thoughts on her began to flutter. Kotaro couldn't even get on the story of his marriage to Kaori, who was talking about what the surroundings would do.
Meanwhile, when Takako returns to help her parents' house, she happens to hear that her father, Toshio, tells her friend, 'Takako hasn't gone to her wife yet.' 'It's that child's life, just like it. I think I might just have to be alone when I get older ...' She hears her reticent father's thoughts for the first time. , Takako's heart shakes.
She is a girls-only gathering with Yuko (Miwako Ichikawa) and Hidemi (Maho Yamada). 'I'm sorry, I'm getting married,' suddenly said Yuko. Tired of being 'alone,' Yuko decided to marry a man she originally knew. She is neither rich nor fashionable to marry him. Neither Takako nor Hidemi could say 'Congratulations' to Yuko, who said, 'At least I want someone in this world to be on my side.'
At that time, she received an email from Egawa (Hirofumi Arai), whom she had met at a joint party hosted by Kotaro, saying, 'Are you free next Sunday?' Surprised by her sudden invitation, Takako, whose father's words remained in her ears, decides to accept her invitation.
Her first date with Egawa. It was surprisingly fishing that was taken. Takako once again feels that she is happy to be with Egawa. Takako was able to nod obediently to Egawa who said, 'Will you meet again?'
Kotaro, on the other hand, is surprised to hear from Takako that he went fishing with Egawa. Kotaro is impatient when he feels that the distance between Egawa and Takako is getting closer. I can't even see the picture of Kaori on my desk.
Kotaro asks Kurosawa (Shunsuke Nakamura), who had an affair with Takako in the past, 'What is marriage?' 'The most calm thing is a system that moves society smoothly. But ideally, it would be to choose a person who wants to live a life that is only once,' Kurosawa said. Kotaro can't help but be there ...! ??

She cried in front of Egawa (Hirofumi Arai), crying, and found out that Takako Hara (Yuka) and her fiancé Kaori (Mayuko Kawakita) were hugged by him, and that her grandmother's condition had deteriorated. Kotaro Ozu (Takahiro Miura) who embraced. Kotaro, who was determined to part with Kaori for Takako, however, agrees to 'pretend to marry' Kaori to reassure her grandmother. Not knowing that, Takako accidentally hears Kotaro going to greet Kaori's parents, and she is shocked.
'I wonder if I'm the second woman no matter how far I go.'-Takako is worried. She went to the front of her Kotaro's mansion, and what she witnessed was Kotaro, who was completely drunk at a dinner with Kaori's parents, and Kaori was escorting him.
'Takakosama, there are people I want to meet,' Kaori was waiting for Kotaro's younger sister, Kotomi. 'Since I'm back, can you stop Kou-kun anymore?' Kaori offers that from the front. If she hates Kotaro, it can't be helped, but Takako, who can't say anything to Kaori that she can't allow someone to steal, calls Kotaro to her apartment that night.
As before, Kotaro says, 'I'm going to break up with Kaori, so please wait.' However, when her anxiety peaked, Takako asked her, 'How long have you been waiting?' Takako realizes that she can't stay in this state, and she tells Kotaro that she wants her to concentrate on her work until winter vacation begins. 'Mr. Ozu doesn't know what he's going to do with me, but his work doesn't betray me.' Kotaro reluctantly nodded to Takako's words.
The days passed, the closing ceremony was greeted by passing each other, and Christmas Eve-Takako left school without having a conversation with Kotaro and ate Christmas cake alone. The next day, when she returned to her parents' house, she had nowhere to go, and only hurt her conversation with her parents and her married sister ... At that time, she received her call from Kotaro. 'Meet me. I've been waiting for you at that store since 7 o'clock, all the time.' Takako's heart shook when she heard the message from her answering machine.
Kotaro, who was about to leave the house with a Christmas present for her Takako, is detained by Imamura (Tomo Yanagishita) who suddenly arrives. 'What are you thinking?' Imamura was consulted by Kaori and came to remind Kotaro. The time to meet with Takako is approaching.
Takako rushes to her meeting shop alone. It was Egawa that she came across by chance. Egawa apologizes for her previously hugging Takako. 'I felt like I knew Mr. Hara ... I wanted to support him,' says Egawa. Egawa knew that Takako was meeting with Kotaro, and she was there to prevent Takako from being alone.
On the other hand, Kaori appears in front of Kotaro who tries to shake off Imamura and head for Takako. Kotaro can't say anything to Kaori who cried, saying, 'Don't go. Don't make me a disgusting woman anymore.' To Kotaro who does not appear at all, Takako is ...! ??