My General Husband Can Read My Mind — Episode 2

Future research genius Yoo Hee-eum dies and possesses the fiancee of the villainous Major Yeon Jang-ya. Plans to act demure, earn money, and vacate her spot for the ninth concubine. On wedding night, Yeon Jang-ya hears her inner thoughts. [This is Yeon Jang-ya who cheats with the ninth concubine?] Yeon Jang-ya is bewildered. Father only has eight concubines; where does the ninth come from?