Nishikata is in class when he realizes that he does not have his English textbook. After a while, he reluctantly moves his desk next to Takagi's. Later, they exchange letters that contain hidden messages to each other.

When Takagi walks in the classroom and sees Nishikata with a hypno coin, she asks him to try it on her. After being surprised that it seemingly worked, he eventually tells her to pick her nose. Just as she is about to do it, Nishikata has second thoughts and tries to stop her. Once this happens, Takagi reveals that she only pretended to be hypnotized.

A tired Mina is in the hallway talking to Yukari and Sanae where she tells them that she watched a hypnotism show. As a result, she got hypnotized. Afterwards, they find out that Mina is still hypnotized.

Walking to school together, Takagi proposes a contest to Nishikata where the one who carries the biggest piece of ice to school wins. When Nishikata drops his, he offers his hand to warm hers up. However, she asks for his hand warmer instead.

When Takagi meets Nishikata on the way to school, he tells her that there is something different about his appearance from the day before and challenges her to figure it out. After a while, Takagi correctly guesses that it is his hair. She tells him that she will change her appearance the next day and he has to figure out what said change will be.

At school, Mina teases Yukari about her messed up bangs until Yukari snaps. Yukari ends up apologizing to a despondent Mina.

On April Fools' Day, Nishikata and Takagi head to the candy store. Inside, Takagi urges Nishikata to try a grass-based candy, which he actually enjoys. Later, she tells him the upcoming school year may result in seats being shuffled. This shocks him until she reveals it only applies to the third-year students.

With the new school year arriving, Mina tries to diet in order to emulate the slim bodies of models and television stars. However, when Takagi and Nishikata arrive with candy, she quickly abandons her regimen.

A week after starting their first year, Sanae began addressing Kimura without an honorific, an act he found intimidating. Nishikata tried to take advantage of this by dropping "-san" from Takagi's name, but panicked and re-added it. In response, Takagi, who had been calling him Nishikata-kun, decided to remove the suffix.

As a result of his push-up routine, Nishikata easily defeats his friends in arm wrestling. Takagi challenges him to a match, during which she lowers his guard by feigning weakness and joking about them holding hands.

Staring out her classroom window, Mina philosophizes about how short youth can be. When she starts comparing it to expiration dates on food, Yukari and Sanae point out her thinking does not make her as grown up as she believes, but retract their statements when she starts to cry.

Due to his loss in arm wrestling, Nishikata buys juice for Takagi. Remembering a conversation he had with his friends about maturity, he buys coffee for himself, but struggles with its strong flavor. Takagi tells him drinking coffee does not change her perception of him.

After watching Dandy of the Old West, Nishikata tries to copy the titular character's mannerisms while he and Takagi engage in asking a series of questions. However, Takagi's prompts cause him to panic, which enables her to tickle him.

When Mina misinterprets Yukari and Sanae's conversation about eyebrows, she insults Yukari's bangs. Although Sanae clarifies what they were talking about, Yukari is too hurt by Mina's remark.

Nishikata and Yukari are members of the field trip planning committee, which forces them to stay after school. Unaware of his thoughts, Yukari observes Nishikata's behavior and assumes he is lamenting not going home with Takagi.

On his birthday, Nishikata visits a bakery to pick up his cake when he encounters Takagi. Not wanting her to know his intentions, he challenges her to guess his destination and vice versa, only to learn she is also going to the bakery. Inside, Takagi picks up her items first before giving them to Nishikata as a prize for winning the challenge. In addition to sweets, he receives a 100% Unrequited Love keychain.

As they are getting ready to take the sports test, Nishikata proposes a contest to Takagi where the winner is the one who receives the higher score. After a few tests are completed, the final one is the grip strength. During his second attempt, Nishikata becomes distracted when he thinks about holding Takagi's hand. When he concedes defeat, Takagi reveals that her score was lower than his.

After school, Nishikata challenges Takagi to a game of dodgeball, which she easily wins. During the next game, she asks him a loaded question with romantic intentions. Although Nishikata does not catch it, Takagi is glad he went after it.

After buying some snacks at the candy store, a cat takes Yukari's candy bar. Giving chase, Sanae eventually discovers why the cat took it. As they are walking, Yukari, Mina, and Sanae realize that they left their bags and snacks at the candy store.

Nishikata is on cleaning duty for the day following PE class. Takagi joins him and they head to the storage closet. Inside, Takagi teases a flustered Nishikata about the situation. Meanwhile, Mina, Yukari, and Sanae are in the hallway talking about the supernatural.

Leaving the storage closet, Takagi notices that Nishikata has blood on his pants. When they head to the nurse's office, Takagi grabs the antiseptic and proposes a bet where Nishikata will lose if he says "ouch". Letting his guard down, he loses when he indirectly says it.

In the classroom, Nishikata challenges Takagi to a game of acchi muite hoi. During one of the rounds, Takagi asks Nishikata if he has a crush on her. A flustered Nishikata realizes he lost when he sees Takagi pointing up.

As the class is enjoying their time in the pool, a despondent Yukari does not join them as she cannot swim. After Mina and Sanae asks a bunch of questions, Mina tells Yukari that her talent is that she does not have one.

In the classroom, Nishikata notices something is off with Takagi. After school, Nishikata finds Takagi at the shrine, who reveals she had a fight with her mother. Feeling better, she asks him to stay with her. She then asks if she can tease him again, much to his chagrin.

After Takagi successfully applies Nishikata some eye drops, the two swap turns. In a panic, Nishikata attempts to force her eyes open with his hands as Yukari enters the classroom.

Having misconstrued Takagi and Nishikata's eye drop challenge as kissing, Yukari asks Hojo to peek through the classroom door to investigate. Yukari later tells Mina and Sanae what she believes is a scoop, only to be frustrated when they provide childish examples.

Nishikata challenges Takagi to a game of hide-and-seek, which Takagi wins when she finds him behind a set of barrels. Hamaguchi and Hojo then sit near their location. Nishikata accidentally exposes himself when Takagi comes closer to him. When he tries to explain they were playing hide-and-seek, Takagi describes their experience in a sensual light, embarrassing him and Hamaguchi.

Running into each other outside, Nishikata challenges Takagi to a guessing game in which they have to guess the number of steps they have to take. After she teases him about the situation, they agree to give up.

Yukari sees that Mina and Sanae are sending text messages to each other. When she sees a message about the summer festival, Yukari remembers when she went with her sister a year prior and she obliges her sister's wish to shoot fireworks.

At the library, Nishikata and Takagi exchange souvenirs. When she later tells him how happy she is, he admits that he tried to prank her. At the shrine, Takagi heavily implies that she would like Nishikata to invite her to the summer festival.