Sudo, seemingly an ordinary deliveryman, leads a double life as an underworld 'courier' and finds himself entangled in a complex relationship with his neighbor Uno after a drunken evening. When Uno grows distant, Sudo's concern leads him to a dramatic encounter where he must protect Uno from street thugs. In a moment of peril, their fates intertwine as Uno, a hidden witch descendant, reveals his long-concealed powers to save a wounded Sudo, forging an unexpected bond between them.