予鈴だ。校門の辺りにいた生徒たちが一斉に足を速める。
It's the class bell. The pupils that had been around the school gate quickened their steps as one.
13 strokes
small bell, buzzer
On'Yomi: レイ, リン
Kun'Yomi: すず
4 strokes
beforehand, previous, myself, I
On'Yomi: ヨ, シャ
Kun'Yomi: あらかじ.め