When Class 1-A was fighting Deku got pulled away to another area instead of being there with Bakugo during the final battle against Shigaraki and although Deku starts to fly back to U.A. it takes him quite a while to get there even at his full speed and when Deku(you)arrives he absolutely destroys Shigaraki before turning around to apologize to everyone for being late, and thats when he(you) sees that every one is unconscious and barely living before he spots Bakugo laying in the grass dead