It's not Uncle Mew but a close second.

mei by this artist really scares me

Nishi Koutarou's Mei is on par with the creepiness of Soara's Kotone. I get the feeling that in the Pokemon world you sometimes find these types at bus stops and in dark alleys. Your Pokemon won't be enough to protect you.

even if she says her hair bun is tasty... no, because it's her, and hair, it's obviously some sort of huge trap.

That tail... It knows what it wants...