A man falls asleep while playing an online game and wakes up as his in-game character, Arc, in the game's world. He quickly adjusts to the new environment but realizes he chose a skeleton avatar, forcing him to keep his face hidden to avoid attention. Arc travels to the nearby castle town of Luvierte with the hope of becoming an adventurer and earning money by completing quests. With his overpowered abilities, he embarks on an exciting journey, exploring various territories, defeating monsters, and assisting people in difficult situations. However, his seemingly harmless actions may entangle him in a brewing conflict that could change the realm's fate forever.