Seishun 2-shuume no Ore ga Yarinaosu, Botchina Kanojo Tono Youkyana Natsu

After waking up, he discovers he has reverted to his junior high school self. He reflects on his current life as a disillusioned adult with no prospects, despite being well-liked by women. He holds his past, especially his first love, Akimiya Hazumi, responsible for his misfortunes. Following an accident, he time-leaps back to his school days. Once an unremarkable student, he now uses his adult experience and grooming to navigate school life successfully. He rescues Chigasaki on his way to school and helps resolve conflicts among classmates. His focus remains on uncovering the truth behind events from that summer involving Akimiya, which he believes led to his life's decline.