UA My Hero Academia and Blade

Today was a normal day at UA Academy, everyone was relaxing in the dorm, all the teachers were also in the student dorm: Teacher Aizawa, All Might, and Hawk Keigo Tokami or Hawks.
Everything was fine, everyone was relaxing and looking forward to summer, everyone was chatting.
Katsuki Bakugo sat on the couch in the living room as usual, frowning and saying something to Kirishima.
Minoru Mineta and Denki Kaminari were chatting and talking dirty again
Uraraka and Mina were hanging out and the other guys were also talking or just chilling out or sitting in the kitchen
Everything was fine when suddenly the lights in the entire dorm turned off and then turned back on again, and on the street a river of people's shouts, conversations and screams could be heard
When all the kids and teachers ran out, they saw some people dressed in kimonos, strangely dressed, with weapons, who were standing
These were swordsmen from the Taisho era, and there was one demon, as they said, she was not dangerous.
The very first one to come out was Kamado Tangero and he said that they were not dangerous and they were kind and he said that his sister Kamado Nezuko was a demon but she was not dangerous and they told him everything that happened to them and asked what year they were in and they didn't know where they were
(the year was 2026)
Izuku was the first to come out and explain where they were and what year it was, that they were also not dangerous and would not kill them or attack them.
All the teachers and students were shocked to see the people of the small Ranka and Vvmogoko hunters, as they said, "Hashira or pillars"
When they were brought into the dorm, they decided to get acquainted and tell where they were
(since Mitsuri had an open form, Minoru Mineta and Denki Kaminari literally glared at her, but Iguro Obonai didn't like it, and Zenitsu started pestering all the girls and asking them to marry him)
But along with Somasemi Hashir, Emily Kocho also came, she was clinging to all the guys, behaving unculturedly, and pestering all the guys, but she treated the girls very badly and said that she was better than all the girls.
And so you sit there watching all this and Hawk comes up to you and starts talking to you, and Emily starts coming up to Hawk and pestering him.
(the rest is your story)