That spring, the boys were 17 and the girls were 15.
The classroom of Grade 17, the first period of self-study in the evening is in progress
The second person sitting in the third group was a boy who didn't have dinner because he was playing ball. The third person in the second group was a girl who didn't have dinner because he was "peeping" at the boy playing ball.
It's said to be peeking, but in fact it's just sitting on the steps around the basketball court openly, looking at the farthest court... That's all.
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Intention: