Rascal Does Not Dream of a Knapsack Kid

In Fujisawa, where the skies are bright and the seas glisten, Sakuta Azusagawa is in his second year of high school. His blissful days with his girlfriend and upperclassman, Mai Sakurajima, are interrupted with the appearance of his first crush, Shouko Makinohara. For reasons unknown, he encounters two Shouko's: one in middle school and another who has become an adult. As Sakuta finds himself helplessly living with the Shouko's, the adult Shouko leads him around by the nose, causing a huge rift in his relationship with Mai. In the midst of all of this, he discovers that the middle school Shouko is suffering from a grave illness and his scar begins to throb...

WHAT WILL IT TAKE TO MAKE HER WISH COME TRUE? After a draining December, Sakuta is quickly nearing the end of his second year of high school. Since Mai is a third-year student, they don’t have much time left together before graduation rolls around. Meanwhile, his sister, Kaede, is slowly but steadily venturing outdoors again. Just as she begins to find her footing, she announces her most ambitious goal yet—attending her brother’s high school! Sakuta knows better than anyone how difficult this will be for Kaede, and he’s ready to support her however he can. He’s just not sure if that’s what’s best for her…or what she really wants…

There's a rumor about a mysterious phenomenon called "puberty syndrome." For example, Sakuta Azusagawa is a high school student who suddenly sees a bunny girl appear in front of him. The girl is actually a girl named Mai Sakurajima, who is Sakuta's upperclassman who is also a famous actress who has gone on hiatus from the entertainment industry. For some reason, the people around Mai cannot see her bunny-girl figure. Sakuta sets out to solve this mystery, and as he spends time with Mai, he learns her secret feelings. Other heroines who have "puberty syndrome" start to appear in front of Sakuta.

Theatrical follow-up to Seishun Buta Yarou wa Santa Claus no Yume wo Minai . "Actually, I’m Touko Kirishima." The audience erupted in excitement upon learning that the true identity of the mysterious, wildly popular internet singer was none other than the nation’s favorite actress, Mai Sakurajima. The scene was exactly the same as the dream Sakuta Azusagawa had seen on Christmas Eve. Starting with Mai’s shocking confession on April 1, the impossible events that everyone once dreamed of keep happening one after another. The social media hashtag "#Yumemiru," where dreams come true, has vanished, and as Sakuta struggles with the disconnect between the reality before him and his own perception, he receives a message from a version of himself in an alternate reality. ―Stop Touko Kirishima, ―Before reality is rewritten. To restore the world to its original state, Sakuta sets out to find Touko Kirishima. This is a story about overcoming the "Adolescent Syndrome".