Mousou Kikou - Adolescence Avatar
Adolescence Avatar·妄想奇行～アドレッセンス・アバター～
Yazaki Yuuri is a new student hoping to become popular at his high school while secretly writing a light novel. When unusual events occur on campus, a quirky classmate named Sakurabi Yukimi tells him that his thoughts are causing the creatures from his novel to manifest in the real world. He must now deal with these imaginary monsters without revealing his secret or ruining his social standing.