Katherine stuck a QR code print-out onto the blackboard.

The students scanned the QR code and started donating. Some donated two hundred thousand, some five hundred thousand. The generous ones contributed a million bucks.

They had their hearts set on the reward for the highest contributor, as what Miss Katherina had said.

“How much did you donate?”

“Wow! Five hundred thousand.”

“I’m not bad as well. I donated six hundred thousand.”

Everyone was proud of themselves for donating. Katherine wa