Dante has lived his life hiding a secret—he is immortal. Working as a repairman, he one day witnesses a murder at the home of his client, Demis. Instead of running, he makes an unusual request: Kill me. Demis refuses at first, but upon discovering Dante's immortality, he becomes intrigued. A dangerous promise is made—one that ties them together in a fate neither of them could have foreseen. (Source: Lezhin Entertainment)