That winter night, Chen Yu saved a girl, Su Wan, who was trying to end her life in the heavy snow.
Destiny knitted them into the same senior class again. Two scarred souls quietly approached each other in the darkness and became each other's only light. When Xu Ming, the boy in the class who was most like Chen Yu's deceased brother, collapsed and committed suicide under the torment of school violence, Chen Yu's world collapsed again. The huge guilt pushed him to the rooftop, but this time, it was Su Wan who held him tightly and said in a trembling but firm voice: "Stay alive."
They agreed to go to college together and see the most beautiful snow-capped mountains. The college years were as sweet as poetry. They worked part-time, saved money, and walked hand in hand to many places. Finally, in their senior year, they rushed to the top of the snow-capped mountains that they had always dreamed of. However, a sudden avalanche completely buried all the vows and future. In order to save Su Wan, Chen Yu lost his arm, but the cruelty of fate was far greater than that - they lost all memories of each other at the same time.
Several years later, at the same institute.
She recognized him first. At that time, she had a new lover by her side and her life was peaceful. And he was still alone. Under his empty sleeves, there was a void that he didn't even know the cause of. She burst into tears in front of him, but he could only watch blankly. Those hot tears, like a key, unexpectedly pried open the door of his frozen memories - the snowy night, the rooftop, the oath, the avalanche... The girl named Su Wan rushed back to his mind in an instant.
However, it was too late.
He thought of the whole world, but only lost her.
I finally lost you in oblivion
