In Rebirth Elementary School, I Rely on My Adult Thinking to Make the Whole School Funny

1. Wedge: The 30-year-old male protagonist died suddenly after staying up late and working overtime. When he opened his eyes, he found himself lying on the desk in the primary school classroom. In front of him was the familiar "Mediterranean" class teacher and his chirping childhood classmates. He was still holding a math paper with a score of 58 in his hand.