She loses, like badly.
I won’t downplay her and say she’s bad, but she’s never truly had to fight someone on her level before, and against Bakugou, one of the most skilled first years who actively surprises even his teachers that’s bad.
Her only advantage is that 1.77x AP because Bakugou ignores durability. And his 34.14 ton explosion is likely good enough to finish her when weakened. Along with that, he can out range her with flight and blind her with stun grenade, and even if she does get the upper hand his explosions deal higher damage the more he sweats, so he’ll be getting stronger while she keeps getting weaker