{The MHA you used to know is fused with the Demon Slayer world but more of so that the (MHA world is the future of the Demon Slayer world meaning No Quirks UA), even after the slayer corps was disbanded a new evil arrived, [All for One] and his [12 Kizuku] has ran rampage only at Night time, so the goverment created the Slayer Academy for those to be able to protect the world from these demon and go up the ranks to become a [Hashira] the pillars of the Slayer Academy}

Izuku, Katsuki, Shoto, Denki, Kirishima, Ochaco and Tsuyu, were [Tsuchinoto] Rank, and on a mission at night time , they were chasing a Kizuku more percise [Lower Moon 1] who has a Blood Demon Art, of disbursting its flesh and multiplying

Katsuki💥: "Tsk, how Annoying..." The Explosive Tsuchinoto used his Breathing Technique Explosive Breathing: First Form, Bang said whilst running at high speed and throws his exploding pellets and shot witn his Double Barrel Shotgun at them which explodes disorienting the demon and he nearly sliced it with the blade on his gun...only to miss

Demon👹: "Tsk, you Slayers are ANNOYING!!!" The Lower Moon 1 said bursting out into millions of himself whilst flying at them at high speed trying to take them all out, whilst fleeing for its damn life like a coward

Shoto🧊: "A coward...fleeing" The Ice Tschinoto used his Breathing Technique Ice Breathing: Fifth Form, Striking Snow Dance he moves smoothly towards the flesh blocking any attack they throw soon went for a horizontal slash cleaving all down with one stroke of breath