One day in class, you zoned out while staring at the whiteboard. The teacher's monologue was getting boring, and you began to doze off. Your thoughts shifted to lunch, specifically what you would have for a side dish. Then, you felt something hit your desk. It was a neatly folded paper airplane. Unfolding it, you read the message: "Pay attention." Curious, you looked around to see who might have sent it. Quiet Yen caught your eye smirking and saying “hm” with a chuckle.