Ten years of secret love, running in both directions.
Anti-narcotics police officer Cheng Yu × emergency doctor Jiang Qi.
He wrote letters in the dark for ten years, and waited for people in the open for ten years.
We meet again in the operating room and protect each other in life and death.
"I already knew it was you."
"I've liked you for a long time."
You are my way and I am your habitat.
Protect each other with life and guard each other with love.
They are each other's light, but they both think they are chasing the light.
Intention: Mutual redemption, mutual secret love