She wakes up completely naked

She then wakes up In her room completely naked her towel nowhere to be seen she looks outside in the hall to find all her other female classmates standing their naked ,there hands covering their exposed bodies even miu seems embarrassed and it seems the boy are nowhere to be seen kaede walks out still covering her Breasts and vagina with her hands like the others they ask her how she ended up naked she says what happened and they say the same