Unstoppable High Kick Episode 23

Min Yong is annoyed at how Hae Mi always seems to cut in whenever he speaks. He becomes determined to teach her a lesson and purposely begins to do the same to her. Meanwhile, Mun Hui is startled when she sees someone just like Mrs. Kaesung Daek through her window. She finds out that it is actually her twin sister. (Source: TMDb; edited by kisskh)