The S-Class Hunter is in Rehabilitation.

"Come here. I'll go out with you." "I think there's been a misunderstanding... I don't like you, Seo Moon-gyeol!" Kwon Ha-yul, the only SS-class hunter in Korea, has explored countless gates to protect people. But no matter how hard he tries, all that comes back to him is people's avoidance and contempt. Ha-yul, who was gradually getting tired and worn out, gets caught in an explosion at a strange gate in District 8, but, for some reason, he doesn't die and wakes up in a new body with a completely different face. With Granny Oh, who saves Ha-yul after he collapses in District 8, which has become a land of death after the gate explosion, and embraces him as a replacement for her lost son, ...