"Ah!" The boy cried out in pain as he was hit on the head.

He glared at Lucy, but he immediately shut up after recognizing her.

The church was instantly quiet.

Lucy looked around and was satisfied to see they were all at peace.

Laura squeezed the chalk and scanned the question. After thinking briefly, she wrote an answer directly on the board.

Immediately afterward, she turned around and put the chalk back, clapping her hands together as she returned to her seat.

The teacher glanced at the board and said, "She's right. But the answer is a bit irregular. Remember to write down the steps clearly next time."

The...