Shen Zhidu, 28 years old, is an algorithm engineer in Silicon Valley. In high school, I had a crush on my deskmate Su Wangshu for three years, but never opened her mouth. Ten years after graduation, he received a group message at three in the morning - Su Wangshu passed away due to illness, three days after the funeral. He booked the earliest flight back to China. The plane encountered strong airflow over the Pacific Ocean and the fuselage was violently turbulent. He grasped the armrest in a daze, and there was a thought in his mind: "If you give me another chance to come back -"