Этот глупый свин не понимает мечту Санта-Клауса

After encountering various girls going through Puberty Syndrome, Sakuta Azusagawa's high school days have come to a close, and he is now a university student. He enrolls at a university in Kanazawa-hakkei alongside his girlfriend Mai Sakurajima, a nationally famed actress. Off campus, he stumbles upon an out-of-season miniskirt Santa. Precognitive dreams, an anonymous online singer, poltergeists buzzing on social media... A mysterious tale with enigmatic phenomenons surrounding girls with wavering hearts starts again. Puberty continues... (Source: Crunchyroll)