The Skeleton of the Black Mist

Mage is a skeleton monster living in Spirit Town. A human child named Chara finds an ancient spellbook and summons him. How will Mage deal with this new environment? He's the distant ancestor of Sans and Papyrus. He's also got a lot of problems and a pet shark. Now that he's separated from his brother, how will he manage? Whether he's befriending sea creatures, causing trouble, or avoiding the watchful eye of his brother. What could possibly go wrong? Now that he's trapped in the world of the living, how will he get out?