The Concubine Contract

As the deadliest assassin in the Seong Empire, Yeseo is stumped by very few jobs that come her way. But when Emperor Ahon hires her to find the spy hiding in his palace, she must also play the part of his new airheaded concubine as a cover. It takes all her patience to keep up her lovey-dovey act with Ahon during the day, and all her smarts to sniff out the enemy at night. If only she could wrap up this job quickly and collect her handsome reward—but with so many suspicious officials and the tan...

The Concubine Contract is originally a webtoon series which has been officially published in book format by The Origin (더오리진) since December 20, 2023. The series has been published digitally in English by Tappytoon and in French by Delitoon.