RASCAL DOES NOT DREAM OF SANTA CLAUS

Sequel to the film Seishun Buta Yarou wa Randoseru Girl no Yume wo Minai. 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) — Description from AniList community (anilist.co).