My parents divorced when I was young, and my mother took us in, but soon found a new man and left. For the next 12 years, I forgot about my dreams for the future and romance and was completely absorbed in raising my little sister. My little sister, who I thought would always be a child, has grown up and come to greet me with her boyfriend, a marriage certificate in hand. I can't believe that my little sister, who I've raised so carefully, will become the property of a man I don't know, just because of a piece of paper. I will never allow her to get married, Hana is mine alone...