Kwon Ki Hoon takes at the man who seems to have gone through hell during the phone call. He doesn't know the exact nature of this man's relationship with his sister. His sister has a complicated history. She slept for 5 months. When she woke up, she suddenly decided to pursue an acting career. Kwon Ki Hoon guesses that the reason must have been Kang Si An.
He can't guess what could have happened between Kang Si An and his sister. Kang Si An is completely blocked out by his sister. He knows one thing that Kang Si An loves his sister. If his sister didn't have any feeling, she wouldn't have left.
"Kang Si An." Kwon Ki Hoon leans forward and rests his elbows on his thighs. The shattered man looks at him with eyes full of sorrow. Kwon Hi Hoon pities him, but there is nothing he can do. "My sister is happy where she is. I think that you should stop now."