Kim Hanbin kindly invites a homeless girl home one night to escape the rain and cold. He does it because that's how he is - kind. Will they prove to be more than just two strangers who met by chance?

Kim Hanbin just cannot understand his girlfriend, Shelby. Six months ago, she was the sweetest, kindest person. Now, she blames him for every little thing or tells him 'let's break up'. Other times, she is silent and cold or harsh and hateful. What happened to the girl he fell in love with?   Please tell me what....and how....but mostly why.  Why you act so cold...... Why you