Quick information

Two of my favorite franchises that have little in common, smushed together into one story! What could go wrong?

Disappearances from both worlds have caused a lot panic and for tensions to rise, so far it's only been limited to a few people, but will that last for long? And who is causing this? Someone with a quirk that allows for inter dimensional travel? Someone with a warp or teleportation quirk that got their hands on a quirk enhancing drug? Or is it much worse then anyone could imagine?