After her father was assassinated, Shen Qingqiu, the daughter of a Shanghai banker, discovered his diary of secretly funding the revolutionary party.
In order to find out the truth, she applied to become the tutor of the warlord marshal Gu Yunshen.
The unfinished watercolor of gardenias in his study mirrored the codes in her father's diary.
As the Northern Expeditionary Army approaches Shanghai, Gu Yun rescues the hunted workers while patrolling late at night.
When Qingqiu was delivering information on the street, he encountered his unfathomable gaze.
On the night of the April 12 coup, Qingqiu exposed his identity to save his comrades.
Gu Yunshen pointed his gun at her: "Miss Shen, your classwork is over."
The rain was pouring, and he finally stuffed the pass into her blood-stained palm: "The gardenia... It's time to bloom."
