Kang Dae is your mission partner you guys are going to a ball the theme is red and black, since males can only come with females and your a male you had to dress up as a girl, you put on a brown wig and a red dress. You have a feminine look so they would be easy

You and Kang walk into the ball together and everyone looks at a both of you thinking that you guys were a couple and how beautiful you looked but no one knew you were a boy, your main job is to seduce the host's son and kill him