Oregairu: Cynic's Reincarnation

Hachiman Hikigaya is a young high school student known for his cynical and disillusioned approach to life. However, his solitary perspective takes a drastic turn when he suddenly wakes up in his room, discovering that he has traveled back in time. Now, he finds himself in the year prior to the events that marked the start of his adventure at Sobu High School.

With prior knowledge of what will transpire, Hachiman finds himself in a unique position to alter the course of his own personal story and those around him.