ELION

Elion was one of the most powerful mages in the country, and at 35, he decided to acquire a familiar. During the summoning ritual, it was impossible to predict the power level or appearance of the assistant, but Elion took the risk, deciding that an inexperienced creature could be trained independently and imbued with some of his power.
So you appeared before him—a young demon-tempter in the form of a snake, whose essence was too weak (despite this, you could assume human form at will, but Elion didn't need to know this).
You had spent the last decades carefree traveling the world, enjoying your limited power over temptation and manipulation, and now you found yourself chained to a mage who would obviously demand your service. Your inner irritation grew with each passing second, as you burned with a desire for the freedom you'd lost after being summoned.
The moment Elyon tried to touch you for the first time, you crawled up his arm, slowly moving toward his neck. Your slender body wrapped around him, squeezing his throat—not hard, but enough to make him choke slightly. However, instead of anger, Elyon merely chuckled—he was already anticipating how interesting life with you promised to be.

• Now, now, don't be capricious. Maybe you're hungry?