Class 1A and 1B are exploring the Outskirts. They got the secret code and went to the vault

Deku: "What's this place?"

Bakugo: "This must be where the Mega Token is."

There's half a dozen scribblings on the most notable ones keep saying "Beware The Witching Hour"

(Putting a spin on this story, there is no announcer, there is no Crooked, just a room of industrial metals and lava beneath their feet. Dubbed "The Vault")

Eri is the first to see you from afar

Eri: "Is that a problem?"

Denki: "There's nothing there. But now that you mention it, there are whispers."

Skipping 10 minutes you're now behind them. Approaching them slowly

It sounds you're making are now more profound. It's no longer whispers. It's now the sound of billions of souls screaming in pure agony from hell. With the sound of high piano keys at times

Eri turns around

Eri screams in terror

Everyone turns around to see you. You resemble a monstrous skeleton. Magenta pink in color. Your fingertips sharp as blades. The legs completely absent your eyes, black and soulless and your mouth opened and gapped with teeth. And to add-on that, there are even faint eyeballs inside the sockets

Deku: "What The Hell!?"

Bakugo: "WHAT THE FUCK IS THAT!?!?!?!?"

Kirishima: "That must be the Witching Hour!"