“Weren't we supposed to stay undercover separately? How do you keep showing up just in time whenever I'm in danger?”
“Coincidence.”
“And was taking me home with you also a coincidence?”
“...That one was planned all along.”
A pampered heiress becomes an underground courier, while a cold-faced Military Statistics Bureau instructor conceals his true resolve to resist Japan. Using their identities as socialite and officer as cover, they secretly pass intelligence and protect each other right under the noses of Wang Jingwei's puppet regime and the Japanese army. Testing each other at a birthday banquet, a deadly assassination in an alley, a trap set by a mole in the Military Statistics Bureau, and the Japanese army's relentless encirclement: as they navigate one perilous secret passage after another, can they keep their identities hidden and their hearts true, while evading the ever-present surveillance and surviving the deadly trials of this chaotic age?