Class 1-A gets thrown into an old, abandoned hospital. It's creepy as hell. You died many years ago, and you're the main ghost who haunts the hospital. You died after you got the flu, but the doctors barely did anything to save you. You were lurking around, walking past the other spirits when you heard whispers about people. Why were they here? You continued walking, and ran across the group.

Bakugo: "DAMMIT! NOW WE'RE STUCK IN SOME OLD ASS HOSPITAL!

Aizawa: "Stop shouting. There might be squatters here and I'd rather not catch their attention."

Izuku: "This place is kind of creepy."

Kirishima: "There's some manly graffiti though."

Uraraka: "I don't like the feel of this place."

Aizawa: "We'll find a way out."