In his sophomore year of high school, Zhou Tianluo disappeared.
No one knows where he went.
Xing Che remembered it.
I remember the empty classroom at two o'clock in the morning, the cold wind blowing into the school uniform under the bridge, and the person who always had a cold face who accompanied him through the most difficult days.
They worked on exams together, skipped out to study late at night, and rode bikes through the empty streets of Changhan in the early morning.
Even when they were most embarrassed, they desperately held on to each other.
Many years passed later.
Xing Che still thinks of that long summer.
Long enough to change their lives.
Concept: People are like trees. The more they yearn for light, the more rooted they are in darkness.