Fire Captain Jiang Jin's physical examination report is an unsent suicide note - his body with advanced lung cancer contains secrets from twelve years ago: he once carved the cave walls with love spells from Miao literature, and hid every breath of young Lin Huai in the ruins of the fire scene.
Thirty-seven jars of liquid nitrogen specimens are locked in botanist Lin Huai's laboratory, each of which was taken from Jiang Jin's festering wound. When the underground river of the cave washed out the bloody batik fragments, he discovered that the man who always pushed him to survive in fires had already burned his love to ashes and planted the maple leaf birthmark on his lower back.
"You ask me how the locust tree survives the fire?"
"Because hidden in the ashes is the heartbeat that I have kissed thousands of times."
Intention: Love is the flame that burns away decay, and is also the seed that buries deep ashes. Even if life and death separate us, our souls still resonate in the light of the fire.