In 2010, Gu Nian picked up the wrong book and Song Yuzhou took it away. His fingertips touched and burned her. After four years of dating, she let him go away on a rainy night because she was raising her younger siblings. On the night of their breakup, she walked into the old cafe and made a pact with the copper-green wind chime - to seal all memories at the cost of never losing the ability to love.
When they reunited ten years later, she didn't remember him. But the hot cocoa he handed her was bitter, and she had been drinking it for ten years; she held his hand, her right hand trembling - her body recognized him earlier than her heart. That night when her memory returned, she looked at him through the copper-green glass and felt everything except love. He said: "You asked me to leave, and I left. You forgot, I have been waiting for ten years."
If his waiting could outweigh her weight back then - would that glass crack?
Concept: Love can be sealed by wind chimes, but it cannot seal the temperature that the body remembers for him; he has waited for ten years just for the copper-green glass to crack with the first light.