This is a small coastal city with an area of 47 square kilometers and a population of 1 million. Looking down from the plane, it looks like a milk bottle with a big belly and a narrow mouth. The mouth of the bottle is facing the sea. The raging tide swallows half of the bottle cap from time to time, leaving an arc that makes people think. No. 27 Middle School is located just a little bit below this arc. Looking out from the window of Class 20 High School, you can see the boundless sea. The afternoon sun shines brightly on the blue sea, and the blue waves are playfully chasing each other, with white spray rising on the top of the waves. The teacher's boring voice combined with the sound of the waves blown by the wind induces endless sleepiness... In this warm classroom illuminated by the sun, most of the students are blurred. They seem to be trying hard to focus on the teacher, but they can't stop their heads from moving down.
"Pop" a paper ball hit the head of a boy in a white shirt who was sitting by the window. At this time, he was not dozing off or listening to the class. He was just staring out the window quietly. The sunlight reflected through the window on his face. His smooth and plump forehead, deep dark eyes, overly straight bridge of nose, and slightly thin cherry red lips. The sunlight spread out and melted, as if his whole body was bathed in the clear light.