Monogatari Series: Off & Monster Season

After spending his final year of high school helping local girls untangle strange supernatural afflictions, Koyomi Araragi leaves for university—only for new curses and oddities to keep surfacing back home. In his absence, Yotsugi Ononoki—a former corpse now living as a doll—moves into the Araragi household to watch over his sister Tsukihi, who carries a mysterious secret, and to step into the role of resident occult problem-solver for the town.

Among those drawn back into the paranormal is Nadeko Sengoku, a middle schooler still trying to steady herself after recent encounters with the unknown. Avoiding school, she shuts herself away to focus on her goal of becoming a manga artist, until Yotsugi urges her into a risky shortcut: creating four duplicates of herself, each embodying a different side of her personality. When those copies slip away and begin stirring up trouble around town, Nadeko is left to track them down—confronting the pieces of herself she can no longer ignore.