Good Morning!

She shouted with a cheerful tone! Even if you saw her looked so uncertain a second ago.

Since the first moment the girl blinked, every interaction was new to her, even with people who knew her. Her existence suddenly began in a middle school while she shifts to different worlds with no control.

Imagine yourself in class. Without notice, you're in the world of anything, like a tv show, DIY videos, web shows, or video games. After shifting back to real life, your visit did not change anything nor air/stayed in them.

That is the life of Cal Terror, taken in by a middle school science teacher.