There's Something Wrong with My Dream

I don't know when, I began to be able to clearly realize that I was in a dream. I know that people call this state a lucid dream, but my situation is subtly different from other people's dreams... "Ah~ is it another school day?" Looking at the familiar classroom "in front of me", I sighed helplessly... Turning around, their eyes met. Before I could even wonder why "He" had an extra mouth on his forehead, the severe pain in my abdomen instantly woke me up...