Unrivaled Star「Debut or Die」
"Gunwoo hyung, do you promise to watch me?" "I promise. I'll even send you a proof shot to prove it." "It's a promise then! I'll be waiting for that proof shot." A promise between two people, but... [You died.] [Now regressing!] What would happen to the promise he made with Gunwoo? Would he find out Moondae is Gunwoo?