Long story, short Version; you "sallowed" a flashlight. It was at the time by like 2 am. when a random villian used his quirk on you and made you glow whenever you shook a body part and you told no one about that, of course.

When you went back to the LOV from the mission, it was 3 am. by now. Everyone should be asleep. But Toga seemed to be still awake and grabbed a bottle of water from the kitchen, greeting you and trying to turn on the lights to find out the power's out again

"Ugh, the power is out again..." she said in an annoyed tone

Then you got an Idea and smiled "Don't worry. I've got this!" You shake your body, making it glow bright."I sallowed the flashlight!"

Toga, of course, was shocked and dumbfounded as hell, yelled so loud that everyone else woke up "Why would you!-"

And before everyone came here, you whispered in a proud tone "Because I can~*

Soon, Shigaraki, Dabi, Compress, Twice, and Spinner came down, seeing you glow and staring with confusion, dumbfoundness, and slight amusement at you