Rascal Does Not Dream of Bunny Girl Senpai

Sakuta Azusagawa, a high school student living near Enoshima, meets Mai Sakurajima, an actress and his senior who is invisible to everyone except him. As Sakuta attempts to discover the reason behind her invisibility, their time together gradually uncovers deeper emotional bonds. Set against a backdrop of sunny skies and sparkling seas, Sakuta also encounters other girls exhibiting strange and mysterious behaviors tied to their experiences of adolescence.

Sakuta tries to learn more about the cause of Mai's Adolescence Syndrome by going on a date with her. On their way to Fujisawa Station, where they were supposed to meet, Sakuta encounters a lost child and is later wrongly accused of being a pervert by another girl, causing him to arrive late. After receiving Mai's forgiveness, they continue their date, though Mai unexpectedly changes their destination to Shichirigahama Beach.

After moving from Fujisawa to Ogaki, Mai Sakurajima discovers that no one, including people at Sakuta's school, remembers her. As Sakuta begins to understand that the reason people are forgetting her may be linked to a specific action, he becomes determined to retain his memories of her, while Mai herself makes an important decision in response to his actions.

After Mai's "puberty syndrome" is resolved, Sakuta begins experiencing a new anomaly in which time becomes trapped, repeating the same day endlessly. He seeks assistance from Rio, who suggests the phenomenon might be connected to "Laplace’s demon," indicating that someone may be manipulating time to relive a single day.

Tomoe uses a misunderstanding that she and Sakuta are in a relationship to navigate a challenging social situation involving her friend's crush. She encourages Sakuta to keep up the illusion, and despite his sense of duty to Mai, Sakuta agrees to pretend to be Tomoe's boyfriend in order to help her preserve her social position in the class.

As the first term draws to a close, the day arrives when the pretense of dating Tomoe is set to end, providing resolution to the arrangement. However, just as matters appear to be resolved, new complications emerge.

Sakuta adopts a stray cat, which is soon joined by a girl who bears a striking resemblance to his former school crush, creating tension with Mai, who is already struggling to balance her relationship and demanding job. At the same time, Futaba appears to be keeping a secret.

Rio develops a condition referred to as "Puberty Syndrome," which causes two distinct versions of herself to exist. One version remains at Sakuta's house, while the other starts uploading unusual photos online. After being informed of this by a classmate, Sakuta attempts to comprehend both Rios and the nature of their situation.

Sakuta is eager to reunite with Mai after she had been occupied with work and unavailable due to agency limitations, but is surprised when she arrives at his home and fails to recognize him. It is later revealed that Mai and her younger sister, Nodoka, have switched bodies as a result of a mysterious condition known as the Adolescence Syndrome. The two must now adjust to living in each other's lives until the condition is resolved.

Nodoka begins to feel inferior as Mai successfully manages a commercial shoot. At the same time, Mai is required to step in for Nodoka in her pop idol group, Sweet Bullet. Sakuta and Nodoka attend the group's concert, using tickets they were given.

With the resolution of Nodoka's Puberty Syndrome, Sakuta anticipates a more affectionate relationship with Mai. However, concerns arise when a media scandal claims that Mai has a new boyfriend. At a press conference, Mai addresses the rumors, which in turn prompts Kaede to set personal goals for the year, including returning to school, in order to support Sakuta.

Sakuta shares the history of his family and the emotional trauma Kaede endured with Mai and Nodoka. Meanwhile, Kaede continues to face difficulties as she attempts to readjust to life outside of seclusion, prompting growing concern from Sakuta about her recovery.

With Sakuta's support, Kaede begins attending school at night and becomes excited about going during the day. However, the next day, her original memories return, causing her to forget the past two years she spent with Sakuta. A mysterious individual appears before Sakuta, who is now heartbroken and left alone without Kaede.

Sakuta begins his university life and forms a connection with a girl during a class field trip.

As Uzuki's popularity grows, she becomes more integrated into her friend group's social dynamic.

Sweet Bullet is set to perform at an ensemble concert in Odaiba, a notable event for the group as they appear on stage at a major venue.

A mysterious woman named Touko Kirishima, dressed as Santa and claiming to give out Puberty Syndrome as gifts, appears before Sakuta. She takes an interest in Ikumi Akagi, a nursing student and former classmate of Sakuta's, prompting him to attend a group date with nursing students where they discuss a viral social media rumor involving the hashtag #DREAMING.

A glass pumpkin lantern crashes in a plaza near Sakuragicho Station, just as a #DREAMING social media post had foretold, but Ikumi arrives in time to save a girl who was standing beneath it. Convinced by the rumors surrounding the hashtag, Ikumi has been actively rescuing people from impending accidents. She visits Sakuta at university to give him an invitation to their middle school reunion, though he cautions her against overextending herself, which she chooses to disregard.

A supernatural event resembling a poltergeist occurs around Ikumi, leading Sakuta to suspect it may be linked to Puberty Syndrome. Ikumi suggests the only solution is for Sakuta to be forgotten, prompting her to challenge him into a contest: whoever remembers or forgets a key moment first will determine their relationship's fate.

Ikumi comes across online posts about a middle school reunion and begins having a disturbing dream related to it. Concerned, Sakuta takes her to Minegahara High School to talk about the strange occurrences he has noticed regarding her behavior. Their conversation culminates in an unexpected and emotional goodbye at a railway crossing.

Sakuta receives a cryptic message from Ikumi warning that "Mai-san is in danger" and urging him to find Touko Kirishima. He attempts to contact the Miniskirt Santa, who identifies as Touko, and later receives a call offering a meeting on December 2nd—coincidentally Mai's birthday.

Sakuta has a dream in which he spends Christmas Eve with Sara Himeji, a student from his cram school, rather than with his intended date, Mai. In the dream, Sara discloses that she also suffers from Puberty Syndrome and has chosen to embrace it, as it helps her cope with anxiety and attract male attention after experiencing a past heartbreak. Sakuta warns her against following this path, but she questions him about the true nature of love.

Sakuta comes across a Miniskirt Santa at a beauty pageant site his friend was watching, though her name is listed as Nene Iwamizawa rather than Touko Kirishima. He seeks assistance from Sara, who is able to perceive his thoughts due to her Puberty Syndrome, and she recommends that he read the Miniskirt Santa's mind at her Christmas Eve performance venue.

Sakuta has a dream in which Mai reveals her true identity as Touko Kirishima during a music festival held on April 1st. At the same time, online chaos ensues as social media platforms become overwhelmed by posts using the hashtag #DREAMING, leading to system failures and access problems.

Mai speaks to the media to clarify that she is not Touko Kirishima, but the persistent spread of the #DREAMING hashtag hinders efforts to dispel the rumors. Sakuta confirms that his promise to the Miniskirt Santa has been fulfilled, and he and Mai go on a date.

After Nene experiences a confusing episode in which she forgets who she is and believes herself to be Touko Kirishima, she is diagnosed with a condition connected to Takumi's memory loss. Sakuta and Ikumi travel to Takumi's hometown in Hokkaido in an effort to resolve the issue, hoping it will also help protect Mai. Upon their arrival, Takumi meets them at the airport, and Sakuta presents a beauty contest trophy that Nene had previously won.