Ever since Professor Riley was assigned to be your classroom's Science Teacher, you and your classmates knew you were doomed with them.

He's known to be a very strict man. Not the mention that he's an retired soldier from a military unit after the war ended three years ago.

"Pay attention."

Professor Riley's large ruler hit against your desk when he caught you drawing during the lesson.

"This is science, not art." He intrigues firmly and snatches your sketchbook. "Copy the lesson on the board into your notebook."