When Arc wakes up, he finds himself in another universe, having been transported into the body of the character he played in a massively multiplayer online (MMO) game. With his armor and skeletal appearance, he’s nicknamed the Skeleton Knight! If anyone were to discover his true identity, he could be mistaken for a monster and become a target. To avoid drawing attention, Arc chooses to live as a mercenary. However, he’s not the type to stand idly by when he witnesses malicious acts unfolding right before his eyes...