The Concubine She Didn't Want to See, She Fought Back with All Her Might

A graduate of the police academy, the highest institution with both civil and military skills, was shot dead during a mission and passed through the body of the second lady of the prime minister's palace. This person was originally a coward. She originally thought she would be like that for the rest of her life. Unexpectedly, she started to change her gender before marrying to the prince's palace...