Amagami SS

It's been two years since Junichi was stood up on Christmas Eve, which has scarred his heart and made him wary of love. While buying lunch for his friends, he helps Sae, a friend of his sister, Miya, which catches the attention of the popular school idol, Haruka. Later that afternoon, he goes to the library to meet his friend Masayoshi but encounters Haruka again and helps carry her books while she teases him before leaving with her friend Hibiki. Junichi's interactions with Haruka makes him believe in love again, so one afternoon he confesses to her. Haruka rejects him but she admires his honesty.

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.

Ever since the kiss, the energetic Junichi has attracted the attention of the girls which makes Haruka jealous. He asks her to kiss him on the eyebrows again but instead she brings him to an abandoned water pump shed where he kisses her behind her knees like a puppy. Junichi wants to kiss her that way again and keep asking her for the next few days. After taking Hibiki’s advice on what to do with their relationship, Haruka lets Junichi spoil her including both of them engaging in some roleplay with him feeding her ramen, much to bewilderment of everyone in the cafeteria. Later that night, Haruka thinks how much fun she had with him.

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.

On the night when he was stood up, a heartbroken Junichi is about to go home when he meets his friend Kaoru. To cheer him up, she invites him to her home to eat cake with her and her mother. Two years later, they remain friends who snark at each other. After punching him and bringing him to the infirmary, Kaoru asks Junichi to come to the flower garden after school. Thinking she wants to confess to him, he instead finds Kaoru with her friend Keiko, both asking advice about Keiko's crush. He suggests writing a letter to him. As the two of them go home, Junichi tells Kaoru of what he thought she was going to do at the flower garden, which leaves her flustered as she heads for her part-time job at a restaurant. As she tries to forget about the incident, Junichi arrives at the restaurant, making her nervous every time she sees him. Figuring out why she is acting strange, she in turn realizes that her feelings for him have grown.

As Kaoru is in denial about her feelings for Junichi, she gets into a fight with Keiko’s crush upon learning he made fun of the letter she wrote to him by showing it to his friends. Junichi stops her and follows her to the rooftop, where they talk about Keiko's romantic problems. Their conversation turns to their own relationship, which hasn't changed much. She plays a joke on him and accidentally kisses him which was both their first kiss. Wanting payback for what happened, Junichi brings Kaoru to the library to tickle her. Unsatisfied, he changes his mind and kisses her navel instead. As the two walk home while laughing at what they did, they help two boys retrieve their stuck birdie on a tree. As Kaoru rushes to her part-time job, Junichi realizes he's finding her cuter than ever. Later, while Kaoru is on her way to work, she sees her mother meeting with an unfamiliar man.

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.

Months have past since Rihoko and Junichi have taken over the Tea Club. While it's already summer classes, Kanae is still annoyed that Rihoko has yet to confess to Junichi. While both of them are cleaning the Tea Club, Junichi reveals to Rihoko that he is suffering from heat fatigue due to eating only watermelons and noodles ever since his parents went out to help his injured uncle. After reminiscing their past of measuring each other bodies, Rihoko decides to cook dinner for Junichi and Miya to help with his heat fatigue much to his joy. As she goes out shopping, she reunites with Manaka and Ruriko who are selling cooked eels as part of their university project. After telling them what she is doing, Manaka and Ruriko give Rihoko some cooked eel to help Junichi's heat fatigue. As she heads to Junichi's home with her groceries, she encounters her classmate Makabe who asks her to follow him.

Makabe decides to leave Rihoko alone after hearing who she is in love and with goes after another girl only to embarrassingly realize it's Hibiki and Haruka. Junichi returns home after Rihoko arrived to cook dinner but feels awkward around her after he secretly learns she is in love with him. During dinner, both Junichi and Rihoko attempts to say what is on their mind but always gets interrupted by Miya. With the weather tonight raining, Junichi and Miya allows Rihoko to stay at their house for the night. As Rihoko takes a bath, Junichi looks an album containing both he and Rihoko when they were kids till the present and realize his feelings for her. Later that night, Junichi helps a sleepwalking Miya to the bathroom and meets Rihoko at the guest room. As they reminisces their past playing fireworks when they were children, both of them finally confess their feelings to each other. Junichi tells Rihoko he was always in love with her and never realize it until now.

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.

At the Founder's Festival, Miya and Sae's class is doing a play of Romeo and Juliet with Miya and Sae as the lead characters respectively while Ai is working at the Girl's Swim Team Oden Stand. When she gets her break time, she reflects on last year's Founder's Festival with Junichi and starts to tear up wondering how Junichi's doing. After the Founder's Festival ended, Miya and Sae invite Ai to a slumber party at Sae's place, but before they could go, Ai forgets to get her brother, Ikuo, a present for Christmas. She finds an Inago Mask belt toy at the store, bringing up memories of her time with Junichi again as she stars tearing up again, feeling lonely that she can't spend this time with her boyfriend. But then she hears a familiar voice and turns to see Junichi behind her who snuck out of camp to spend his Christmas with Ai. They call Miya and Sae to tell them that Ai's not coming and leaves Ikuo's gift at his bedside as they go on their long awaited date.