I Inherited What‪?‬

Jojo Vaughn is a nice guy. He's a simple guy living a simple life. The most outrageous thing about him is that he wears lacy undies, likes other guys and he goes out drinking with his grandma. 

One could say that he's clueless and, in this instance, they'd be correct because Jojo just inherited a fortune from a guy he met once when he was five. 

He has no idea why Henry Reynolds chose him as his heir.

Cassander Anaxagoras is also simple although he's anything but nice. Cass is a three-thousand-year-old demon. His sole purpose is to obey the mage who inherits him. 

Henry Reynolds was Cassander's last guardian, and he's left Cass to an idiot with a name like a snack cake.

What could possibly go wrong?