At school

Yuki didn't know it, bit she was about to have a very bad, VERY embarrassing school day. To say she would've been better off staying home would have been the understatement of the century. Yuki's friends, rivals, classmates, or maybe even romantic interests were about to see more of Yuki than they'd ever imagined possible. Or more than Yuki had imagined possible either!

The only remaining question, though is when in the school day did Yuki's troubles truly begin? Before school? During the day at some point? Or perhaps even after the school day had ended?