After Being Reborn, I Can Transform into a Nightmare Dragon

Wang Ye returned to his high school days more than a decade ago. He had planned to use his knowledge of the future to change his life, but that very night, he turned into a dragon! Suddenly, nothing else mattered. What mattered was enjoying the everyday moments of youth he had never experienced in his previous life, while doing his best to study his nighttime self. [An everyday-life story, no System, and the protagonist is the only supernatural being. No supernatural organizations or anything like that.]