The contestants

In the dining hall of the mansion, the women he had selected were all gathered together

Girls from his class; Momo Yaoyorozu, Ochaco Uraraka, Mina Ashido, and Kyoka Jiro

As well as family of his classmates, Inko Midoriya, Mitsuki Bakugo, Mika Jiro, and Fuyumi Todoroki.

The eight women sat in the dining hall, looking around

"The doors are locked" Kyoka huffed as she pulled on the doors

"So... we're trapped in here?" Ochaco said with worry

"There has to be some way out" Momo added, pensively

"Oh. There is!" a voice boomed over them, as Mineta began speaking over the intercom.

He then explained what was going on, and the rules of this little game...