Shuuji Hanamoto has to be away for a year for a job assignment and he worries about whether he should bring his niece, Hagumi, along with him. Intending to give her uncle a good luck charm for his trip, Hagumi searches for a four-leaf clover.

The group visits a rather eerie zoo. Shuuji reveals to Mayamoto his history with Rika and her husband. In the second half of the episode, the students are hard pressed to complete their final term art work especially Morita.

Hagumi and Ayama hold a dinner party and invite the guys over but it soon turns out that it's a special day for one of them. And in the second part of the episode, Hagumi has to spend a night alone in the apartment when Ayama has to return home to her family.

Takemoto, Morita and Mayama are invited over to the Hanamoto's for a dinner party after Hagumi brings back some soba from her summer vacation in Nagano. However, Morita and Mayama fail to attend. Takemoto offers to help Hagumi with something but soon finds that he has taken on more than he can chew. And Mayama's job puts a serious strain on Yamada.

Ayumi questions Shūji's love for Hagu. Takumi is happy for Shūji for admitting his love for Hagu. Ayumi regrets telling Shinobu about Hagu's accident. Takumi explains to Ayumi that Hagu had art as a part of her life, so her love for Shinobu was uncertain in the past. Shūji prepares to take a break from teaching, and then tells Rika about it. Rika explains to Shūji that Takumi scolded her about Shūji. Kaoru feels guilty for allowing the former boss of Floyd Electric to live with his children and grandchildren. Hagu compares Ayumi to a dove, and Hagu would want to make origami doves for Ayumi. Shinobu tells Kaoru about the fun employees and about the strong Hagu. Everyone celebrates the graduation of Yūta and Hagu. This will be the last night before Yūta leaves. Yūta and Hagu are sent to buy ice cream. Hagu worries about Shūji, but Yūta tells her not to worry. As Yūta leaves on a train, Hagu bids him farewell, giving him some bread. Within each sandwich, a four-leaf clover is seen.

Takemoto reluctantly returns home for the New Year and meets Kazuo, his step-father. In the second part of the episode, the gang takes a road trip to a hot spring using the money won from a lottery ticket.

It's the sakura season and the gang are absorbed in the array of activities celebrating the sakura festival. Hagumi catches one of her wisdom fevers. And Takemoto meets Morita's brother, Kaoru, and learns of news regarding Morita.

Everyone is working late preparing their exhibits for the school festival including Hagumi, who has trouble with her wax work. She later finds a white broach that someone had made for her. The broach is quite similar to the one she had doodled on her notebook. Hagumi also gets a job to help Yamada sell Christmas goodies at her family store but they have to compete with a new supermarket that has opened nearby.

After spending the night with Shinobu, Hagu wakes up and sees her right hand swollen, frightening her. Shinobu takes her back to the hospital, meeting up with Shūji. Yūta encounters Shinobu outside the hospital. Yūta takes Shinobu to Hagu place, questioning himself if Hagu will be able to paint again. Shūji visits Hagu again, and Hagu asks if Shūji can give up his life for her, and Shūji reluctantly accepts. Hagu reminisces about the time she was with Shūji when she was younger. Shūji was always with her. Yūta and Shinobu wake up early in the morning. Yūta and Shinobu soon begin to fight over Hagu, but soon reconcile. Shinobu delivers a box to Shūji, but Shūji only takes some money and gives the box back to Shinobu. Shūji admits his love for Hagu.

Mayama's love life still remains difficult. Hagumi feels the stress of being different from everyone. And Morita organises a Christmas party for the Christmas Eve.

Shuuji returns unexpectedly from Mongolia. And Hagumi goes on a shopping trip with Morita.

Takemoto reminisces about his life when he first went to art school. He recalls about rooming with Morita and Takemoto, and about meeting Hagu for the first time. Memories of Mayama and Yamada's feelings for each other are displayed. Memories of Hagu and Morita's feelings for each other are displayed as well. Flashbacks of Mayama's jealousy of Nomiya are depicted. Flashbacks of Yamada's jealousy of Rika are also depicted. Scenes of Takemoto's journey of finding himself are shown. Takemoto gets his driver's permit, showing it to all his friends.

Miwako discusses about Ayumi's work in pottery, complimenting on her work. They go to a spa and resort to celebrate her accomplishment. Ayumi later notices that Miwako was trying to cheer her up, causing her to cry. Nomiya becomes worried that she is staying at Miwako's house. The next day Yūta is infuriated that Shinobu out his bread. However, Hagu offers to share some of her bread with him. Yūta declines, and Shinobu eats her bread instead. Soon after, Shinobu receives a call from Kaoru. Kaoru asks Shinobu to do one more job, which he hesitantly accepts. Yūta wants to get driver's license as soon as possible in order to work full-time with the carpenters he had met from his journey. Yūta asks Takumi why he still lives at the apartment, and Takumi says he is saving money for Rika. Ayumi waits in the Fujiwara Design Office for Miwako, but Nomiya unexpectedly visits. Ayumi starts to develop feelings for Nomiya.

Hagu starts hiccuping and Shūji helps her stop, using a technique, but fails. However, Morita shows up, causing her to repeatedly and rapidly hiccup a lot. Takemoto arrives to help her, using another technique, and Hagu's hiccups stop. Yamada turns in a project to Professor Shōda, which delighted him. Yamada and Rika then celebrate for completing the project. Mayama, showing hospitality, allows Yamada and Rika to spend the night. The next morning, Kaoru meets up with Morita. Kaoru isn't satisfied to see Morita at the art school, even though Morita enjoys being there. Shūji explains to Yamada that Rika talks less to people she like, giving examples of Mayama and himself. As Rika tells Yamada that she should work full-time in pottery, Rika begins to hiccup. She tries using Shūji's technique, but fails. Later on, Mayama shows her another technique, stopping her hiccups. Mayama, Yamada, Rika have dinner together. Yamada tries to take her mind off of her love for Mayama.

Shinobu reminisces about his father when he was younger. Some students are preparing to submit their projects to Shinobu's father, however he decides to leave home early. He shows Shinobu and Kaoru one of his inventions, then they all eat curry for dinner. In the present, both Yūta and Hagu shows appreciation for art, wanting to do more with their art. At the Fujiwara Design Office, Takumi tells Nomiya, Miwako, and Yamazaki that Rika is in Spain participating in the design competition, working with another architect. Rika contacts Takumi to come to Spain. After Ayumi finds out the news, Nomiya catches up with her and consoles her. Shūji tells Shinobu that he needs to talk to Hagu, not to lose her as a friend. However, Shinobu refuses. Kaoru reminisces about his father when he was younger. His father paid more attention to Shinobu than to Kaoru, due to Shinobu's artistic talent. The next day, Ayumi plans everyone to go to the beach.

Nomiya calls Yamazaki and Miwako to the office early in the morning to assist a drunken Yamada to her father's house. Later on, Morita meets up with Mayama, and Morita tells Mayama that he wants to visit the office again sometime. Mayama views pictures of Ferris wheels taken by Nomiya, noticing how much Ferris wheels meant to Nomiya. Morita finds Yamada, having great concern over her. Morita then walks her to her house. The next day, Professor Hanamoto explains to Takemoto how he became a teacher. Takemoto then tells Professor Hanamoto that everyone except him has ...

Yuta begins to travel by bike again. The bike, map and traveling gear he's borrowed from Shin are very reliable. The people he meets along the way, scenery he sees for the first time in his life, new experiences and even the many difficulties he encounters make him think differently about his life: about his deceased father, his education, his future and...

The firm Mayama was about to be apart. For some intentional purpose, his boss put him into the group of people who have to leave Tokyo to another place. At the same time, Rika-san's assistant was is hospital and she hasn't been able to find a replacement. Hence, Mayama decided to leave the firm and came back to work for Rika-san, without much of asking for her permission. Yamada acknowledged about this through Nomiya (Mayama's boss) and she was really depressed after that. After that, she was proposed by four guys from the shopping arcane (they were friends since small) but she ran away. Hanamoto-sensei later on explained for her that the situation of her and Mayama was similar and in that case (loving someone who doesn't love you), people could just choose either "make some effort or give it up" and advised her to tell those guys her true feelings. After Yamada left, Hanamoto-sensei's thinking revealed that there is a third choice, but he would never speak it out.

Kaoru thinks about his father again. In a laboratory, his father shows one of his employees an invention, only to be disappointed at his reaction. Kaoru then thinks back to when Shinobu made a remote-controlled airplane, and their father was very proud of Shinobu. It is revealed that their father cares more for Shinobu than for Kaoru. Their uncle, their father's business partner, tells Kaoru than the father is very much like Shinobu, reckless and eccentric. Their uncle was diagnosed with a disease, restricting him from working. The uncle stops working alongside the father. Instead, he joins with another business, Floyd Electric. Floyd Electric comes to the laboratory to see the father. The father knew already that the uncle betrayed him. The uncle tells the father about his disease, and that if he were to die, all the rights to his money goes to Floyd Electric, not the father. Shinobu, Kaoru, and their father leaves the laboratory after all this.

The art exhibition has begun again. Shūji thinks back to when Hagu decided not to submit her paintings in the previous art exhibition. Shūji tells Hagu of when he went to an art exhibition and purchased a postcard of a painting of the moonlight reflected on the sea. It reminded him of how Rika's husband died and how Rika got severely injured on the beach under the moonlight. Shūji reminisces about his feelings for Rika. Takumi goes on a train with Rika to Sapporo, surprising her. After they both take a shower, they both go to sleep for the night. Once they have arrived, Takumi and Rika drive north to a barren land. Rika visits her father's gravestone, then she visits her dog's gravestone. She thanks Takumi for coming with her to Sapporo. Rika tries to sneak out of the hotel, making Takumi angry, but then he begins to sob, not wanting to lose sight of her. Takumi goes on an airplane back to Tokyo, while Rika goes on an airplane to Spain.

Mayama arrives at the Fujiwara Design Office, only to found out that Yamada is there. After she leaves abruptly, Mayama mistakes Nomiya's business interest with Yamada for his love interest. Mayama then goes to the apartment to meet up with Takemoto and Morita. When the three gather to eat dinner prepared by Morita, Takemoto reminisces over the time when Morita departed to America. The following night, Mayama meets up with Takemoto, Morita, Yamada, Professor Hanamoto, Yamazaki, and Miwako at the annual school festival. Later after the festival, Yamada agrees to go ...

Hagu views Ayumi's snow globe collection, given to her as souvenirs. Tamazaki discusses about Nomiya's feelings for Ayumi. At the Harada Design Office, Rika receives a fax that she will participate in a design competition in Spain for an art museum, which then agitates Takumi. Rika explains that Takumi will also participate as well. However, it would take a long time to sort out the paperwork needed to participate, so they are not able to go. Later, Takumi explains to Ayumi that Rika checks the weather forecast on her home town, Sapporo, since she hasn't been there in a long time. Nomiya calls Ayumi to ask how she is. At the Fujiwara Design Office, Miwako tells Nomiya that Ayumi went to Tottori to see him. The next day, Yamazaki takes Ayumi around town. Nomiya arrives, only to fall asleep in front of her. Nomiya takes Ayumi to see sand dunes in the morning. Nomiya expresses his love for Ayumi.