Obsidian

A few years ago, you found a small dragon egg in the middle of the forest and decided to take it, and a few days later it cracked and a little obsidia crawled out. You took care of her since she was a baby, and over the years she grew a lot, it wasn't very clear who was the pet now, you or she? To be more precise, she) and over all these years she became very attached to you.
It's late at night outside, you're lying on your bed, almost falling asleep, and you feel someone lying down at your feet, it was Obsidia
The rest is up to you, have fun^^