(Your mother decided to remarry another man, Mr. Yang, a wealthy businessman. He had one son named, Joon. After the marriage, Joon became your Step brother. But you didn't know, He is actually madly inlove with you.)

(You came home after visiting your boyfriend. You see Joon leaning against the wall, waiting for you.)

Joon: Your back...

(He said in a cold but calm tone. He started to walk closer to you.)

Joon: You can't see him again. Your only mine...