Aizawa, Hawks, Best Jeanist and Edge shot were walking around one of Chisaki's old labs, Chisaki is a well known villain known as Overhaul who has no regard for human life. as they're walking around, they can hear a child walking around, they know it's not Eri who's a 6yr old girl, they saved her already, so who was the new kid? All Might and Endeavor where outside, making sure no villains suddenly came back.