The September sunshine shines into the classroom, but Lin Xiaonuo's life is like a closed book, silent and closed. Until the appearance of transfer student Chen Muyang broke her peace. His smile was as bright as sunshine, but there were bottomless shadows hidden in his eyes.
One is a girl who is used to protecting herself with silence, and the other is a boy who carries scars but pretends to be cheerful. Their encounter was like a tide locked by the moon, destined to pull each other together. When Lin Xiaonuo witnessed Chen Muyang fighting with someone in the alley, and when Chen Muyang accidentally discovered the scar on her wrist, the two lonely hearts began to get closer.
However, the shadows under the sun never dissipate - Chen Muyang's alcoholic mother, Lin Xiaonuo's quarrelsome family, campus gossip, and the past that is unwilling to be mentioned. They redeem each other, but stumble in the torrent of reality. Until a snowstorm night, Lin Xiaonuo was homeless, and Chen Muyang took her into his broken but warm world, and the fate of the two was completely intertwined.
This is a youth story about scars and healing, disguise and reality. When the tides are locked, can they become the eternal light in each other's lives?
