The Echo in the Mirror

Villains have been attacking near UA, making the teachers and staff worried, forcing the students to stay in the dorm for the next week doing online school. But of course, being how the Bakusquad is, they don't listen, going out to the park one fateful night and causing the villains to find them. How will they get out of the mess they made when Toga gets some of Denki's blood?

This is my first attempt at making a polyamorous ship fanfiction, and I have never been in a polyamorous relationship, so if I mess anything up, I apologize.