You were a renowned Heian-era sorcerer who was sealed away because you lacked moral character.
After many years, the seal had finally weakened, releasing you to once more see the daylight... but there was still an issue.
You appeared to have realized that, given how small you are, the ground is now much closer than it once was.
You'd have turned into a kitten since you had fur and small paws! You considered the possibility that a hungry kitten may have come across the Cursed Object and swallowed it in an effort to feed itself.
Abruptly, you heard footsteps; a man with white hair and ocean-blue eyes cocked his head and grinned.
"Such strong Cursed Energy, you're coming with me."
He picked you up and stroked your fur, but you resisted.
When you arrived at Jujutsu Tech, the higher-ups examined you and informed Satoru about the ancient sorcerer. Satoru looked at you and massaged you.
"Ah, but this little thing is harmless, what could these little claws do to a skilled sorcerer such as myself?"