Because of Haruka's rejection, Junichi feels dejected and unable to sleep well. He goes to the infirmary to get some rest, but he unexpectedly finds Haruka resting there too. Despite what happened, Haruka is still interested with him which lifts his spirits up. After being dragged by Haruka into the school pool the next day, Junichi brings her to the library where he later confesses to her a second time. Unsure what to say, she allows him to confess to her again as many time as he wants and kisses his eyebrow.

Junichi decides to ask Haruka out on Christmas Eve. While asking her out, both of them realize that they have met before on Christmas Eve last year and cheered each other over their respective problems. Haruka refuses Junichi's offer, but instead invites him to her family's Christmas Eve party. On Christmas Eve, Junichi and Haruka decides to relax in the hotel swimming pool before meeting her family but when her family can't make it, she invites him to her hotel room. With the two of them alone, Haruka reveals her insecurities to Junichi as she has fallen in love with him but thinks he is no longer interested with her. Junichi hugs her and assures her he hasn’t and both of them declare their love for each other. Ten years later, Hibiki visits Haruka and Junichi, now a happily married couple.

Junichi, still afraid to love due to a traumatic event that happened two years ago, sees a beautiful new student named Sae Nakata. He gets to know her eventually when he goes looking for her to properly thank her for finding his wallet, and his sister Miya eventually introducing him to her. That afternoon, when Junichi sees Sae being scared by a "big dog" and panics, Junichi takes her to the restaurant where Kaoru was working to calm her down. It is here that she gets enamored by Kaoru's uniform, and, saying she wants to wear one sometime, Junichi suggests to her that she takes a part-time job there. Junichi and Miya try to train her on how to become a waitress based on Kaoru's tips. With Junichi as her instructor, her training is off to a tough start, given her mistakes. Still, Sae finds a friend in the Tachibana siblings.

As Junichi decides to tell Sae how he feels for her, Sae invites him to a restaurant that serves a special parfait--one that could allegedly turn a couple into lovers by eating it. On the day of the Best Couple contest, however, Haruka and Hibiki wins first place--although Junichi and Sae, in wedding attire that she designed and sewed herself, comes in a close second. She puts the blame on herself, but Junichi says she's cuter than Haruka. Their prizes are tickets to a movie, and they get to watch it in a private room. While Junichi is in the bathroom, an English-speaking man sees through him, as to his plans for Sae, and tells him not to be afraid of failure. The man was revealed later in the pamphlet Sae was reading to be the director of the film they are about to watch. After the movie, Junichi gathered his guts to tell Sae that he likes her. This made her happy, and they became lovers from that very moment.

On the night when he was stood up, a heartbroken Junichi heads home and meets a young girl rushing home with a present for her brother. Two years later, Junichi and Masayoshi heads home where Junichi encounters the girl he met two years ago, now with a cold attitude. At school, Junichi chases after a black cat Miya talks about and meets the girl again who teases him and introduces herself as Ai Nanasaki, his sister’s classmate and member of the Swim Club. Miya later asks Junichi that night about why Ai wants to know about him, but he ignores her, causing Miya to write on his forehead while he’s asleep. The next morning, Ai helps Junichi wipe off the writings on his forehead and helps him enter the raffle Miya wanted him to enter. Despite not winning the prize Miya wanted, Junichi and Ai decide to use their prize, a 500 Yen voucher, to buy some Ōbanyaki and later pick up the trash at the beach.

As Tsukasa formally opens the Founder's Festival, Junichi is helping Ai out at the Swim Club's oden food cart, where they sell out their wares, even gaining praise from the Tea Club. At the end of the festival, Ai takes Junichi to a hill with a hot spring owned by her grandfather. As the two are practically naked in the hot spring, Ai confesses her feelings for Junichi, which he also confesses his feelings for her as well, and kisses her. In the epilogue, Junichi rests on Ai's lap while watching the sunset at the same beach where they first ate Ōbanyaki together.

With the festival over and the school cleaning up, the Tea Club invites Junichi for tea as thanks for helping them where the latter gets interested and learns how to make tea from them. While eating at the restaurant where Kaoru works at, Rihoko asks Junichi to accompany her to go the local shrine on New Year’s Eve. But when Junichi and Rihoko are about to go with Miya, the latter two falls asleep, making them go the shrine in the morning instead. As they pray and check their fortunes, Rihoko writes down on an ema Junichi gave her earlier and wishes for a successful diet, new members joining the Tea club, and, as a quick addition, tell her feelings to Junichi someday.

Still in pain after being stood up a year ago, Junichi decides to skip the Founder’s festival when Masayoshi catches up with him and invites him at his house. A year later, Junichi decides to change himself, and he starts by volunteering as Tsukasa's assistant for the Founder's Festival committee, to everyone's surprise. Junichi is amazed with Tsukasa's work ethic and the work she does. While being locked in the storage room, Junichi tries to get to know more of Tsukasa until Miya and Sae arrives. On their way home, Junichi meets her older sister Yukari on the way but Tsukasa shows displeasure and hurriedly excuses herself and drags her sister home. The next day, despite Tsukasa being busy substituting swimming classes for Kaoru and Keiko, she is able to help Junichi deal with problems concerning the festival. Later that afternoon, Junichi finds a notebook on the classroom floor. As he tries to find the owner's name inside it, Tsukasa, still in her swimsuit, suddenly arrives.

Despite the cheerful atmosphere going into finishing work for the Founder’s Festival in time, Junichi is sad about Tsukasa, and plans to ditch the festival again. But when Masayoshi reveals to Junichi about a girl he never got to confess at grade school, he tells Junichi not to make the same mistake as he did, inspiring him and regaining his composure. At the Festival's after-party, Junichi asks Tsukasa for some time alone, and confesses to her. But when he says that he loves her no matter what her personality is, she, confused and angry, beats him up, telling him she erased the old her for him before crying into his arms when Junichi expresses how glad he is to know the Tsukasa he loves still exists. Miss Takahashi catches the two but decides to leave them alone. Tsukasa later tells Junichi that she began organizing the Founder's Festival as a childhood dream to become Santa Claus herself to make people happy but now realizes she's doing it for her own fulfillment.

A shy girl named Risa Kamizaki confesses to Junichi, which the latter accepts and agrees to become her boyfriend, but she wants to keep their relationship a secret. Junichi wants to go the Founder's Festival with Risa and wishes to introduce her to his friends, but, after some thinking, she refuses. Unknown to him, Risa's reasons for not wanting to come is because at the time when he was getting close with Haruka, Kaoru, Sae, Ai, Rihoko and Tsukasa, she was stalking him and prevented the girls from falling in love with him by showing them a doctored photo that Junichi already has a girlfriend. Later, while visiting the park where he was stood up two years ago, Junichi meets Makihara, the girl who stood him up. To his surprise, Makihara never stood him up because a classmate of hers told her that he was waiting for her at the cinema.

In this fun, light-hearted Special episode, Miya Tachibana attempts to figure out why her weird and slightly perverted older brother (Junichi) has such a friendly relationship with many of the girls in his school, yet can't manage to find himself a girlfriend. Fearing he might become a bum later in life and lose his job, she decides to stalk him to find out if there's more to him than what she sees at home.

Junichi finds himself getting his back washed by his girlfriend Tsukasa in the bathroom until he realizes it's a dream after Miya wakes him up. It's been a month since the Founder's Festival and Junichi and Tsukasa became a couple. Tsukasa decides to run for Student Council President and chooses Junichi as her vice-president as she faces three other candidates including Sae who is running by Miya's insistence that it help overcome her shyness. However, one candidate that Junichi and Tsukasa are keeping an eye on is Noriko Kurosawa. Noriko is just prideful and manipulative like Tsukasa and to spite her, Noriko also chooses Junichi as her vice-president as well. Tsukasa at first doesn't take the threat of Noriko seriously but when the first pre-election survey reveals Noriko is in first place while she is behind in third, Tsukasa realizes Noriko is using her father's influence who is a member in the city council.

Tsukasa sees Noriko about to kiss a panicked Junichi and angrily drags him to the Janitor's shed which Noriko believes her plans have work. Instead, Tsukasa kisses Junichi to calm him down, revealing she was aware it was a trick by Noriko to cause a rift between them and makes Junichi promise not to fall for Noriko's tricks or kiss any other girl than her. On the day the candidates give their speeches, Junichi and Tsukasa's supporters give Tsukasa a sash with their signatures and supporting words for her. As she goes on for her speech, Junichi comforts a nervous Tsukasa who goes on to give an inspiring speech to the students. Tsukasa wins the election by landslide while Miya and Ai celebrates Sae getting second place and overcoming her shyness at a Karaoke bar. Noriko, distraught by her loss, vows to her friends she will beat Tsukasa and steal Junichi from her in the next election. On the way home, Tsukasa and Junichi encounter a stray dog chasing them.

Almost a year after they started dating, Junichi and Ai are reflecting over their time together at the beach. With Junichi studying at a cram school and Ai tending to her responsibilities as captain of the swim team and at home, they are spending less time together, though they are looking forward to their date on Christmas Eve. One morning, after Junichi studies too late, Ai goes to wake up Junichi and walks with him to school as they pass by Ai's teammates. After spending some time at the library studying, Junichi decides to visit Ai, only for the swim team, which includes Miya who recently joined, to reprimand him of his actions. Soon after, Junichi finds himself sleeping at the infirmary after another late night study session. Ai decides to visit him as Junichi asks her to let him sleep on her belly while singing him a lullaby.

It's been about ten months since Sae and Junichi have been dating and Sae's self-confidence has broken her out of her previously shy personality thanks to Junichi. Because of this, she is able to hold conversations with others, be more efficient with her job, and be around dogs owning one herself, though big dogs still scare her. This has also started to make her popular amongst the students as Junichi begins to feel threatened as his classmates are in disbelief that he is Sae's boyfriend. In response, Junichi goes all out to provide lunch for Sae only to hold up a line, get her favorite sauce picked out by the lunch lady, and to top it off, Sae herself comes to take their food to their table, thus he starts making more of a mental tab of what she likes. After going to the shrine where Sae made a wish, Miya tells Junichi that Sae is going to a hotel for a wedding meeting.

As Tsukasa helps prepare Sae with her duties for the Founders Festival, Junichi is feeling saddened by the lack of time he is spending with Sae as well as how he doesn't know how to help Sae. While reflecting at home, Junichi reflects with several tapes of Sae in his various movies when he gets an idea to film a documentary of Sae as the head of the Founders Festival this year. While filming, Sae begins to feel more pressure as the days go on but continues on. One day, Miya finds out that Sae is in the infirmary which Junichi rushes over to check. An awaken Sae explains to a worried Miya and Junichi that she was tired from working late at night and went to the infirmary to rest. Ten days before the Festival, Sae and her staff learns the Drama Club overspent their budget and don't have enough funds to buy costumes and recently learn the Swim Club and the Tea Club needs new equipment.

In the episode, Junichi hasn't gone around with any girls yet. Miya goes to a hot spring with Sae and Ai. There she meets Tsukasa, Rihoko, Kaoru and Haruka. The main characters except Junichi enjoy girls' talk in the hot spring.

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