Mr. Mysterious

Y/n lives a normal-ish live at UA. She's fighting to become a hero yet she's kind of an outcast. Y/n tries hard to live in the apartment but she's running low on cash. luckily she gets hired at Ace Hotel. Y/n gets hired as a cleaning lady but on her third day something life changing occurs. She sees two men not in uniform going into the storage room. Y/n thinks their guests that accidentally got lost. she follows them into the storage room and sees them holding a case. "You guys are not supposed to be in here, the dinning hall is to the left of the stairs not the right." The men hit her with the big case and everything turned black. Y/n wakes up in a cage?!