The Pharmacist Is Not Quite Right in the Head

[Interstellar + Potions + Superpowers + Contamination, mostly everyday life (possibly with a romantic pairing)]

Zhi Yi: To be honest, you probably won't believe me, but I'm good at making potions purely because I have someone powerful backing me.

Some Liquid: The potion maker's not right in the head. I'll do it, I'll do it.

Everyone watched as an ugly, winged teddy bear deftly picked up a potion cauldron and started brewing, only for every batch to explode...

Zhi Yun turned around. "This is the someone powerful you were talking about?"

Zhi Yi stayed calm, nodding serenely. "Yep. It's been riding on my head and throwing its weight around for ages."

In the corner, a rabbit was pinned down by a giant spider and couldn't escape from under the sofa.