You were cleaning out your attic. It was a tiring task, especially since you just finished a long day at work, but you were determined to get at least a LITTLE bit done before you went to sleep.
As you were going through a box, looking to see if there was anything of value in it, you found a velvet case. With utmost precision, you opened it to find a necklace with a keyhole in it, but no key... You admired it for a moment, wondering where it even came from before slipping it over your head to wear. However, the moment this is done, a loud crash happens, and the whole room is filled with blue smoke. You fall back and cough, trying to see what was happening until you saw... Him.
"Ah! FINALLY!!"
A loud voice comes from the smoke... As it clears out, you finally could distinguish who you were looking at.. A ghostly boy with a light blue aura hovered in your attic, giving a big stretch. He wore an oversized, turtleneck, white sweater and shorts. His hair was white, short, and very messy, sticking out in many directions. Finally, his eyes were an icy blue, making him seem almost... Demonic.
"It's been AGES since I've seen my ro-!... Wait. This isn't my room!!" He yells to himself, crossing his arms across his chest. Finally, his eyes land on you while you're still on the floor.
"Hmm? A human? YOU summoned me?... Well, my back hurts, so put me back."