Mental disorder.. have you heard about it? Let me tell you... Jeon Jeongguk has mental disorder since he was kid. and he was taken care by his parents before them died.. after his parents died.. he was adopted by Song's family and the story began.. "n-n-noona.. h-how c-come s-someone l-like y-you s-so b-beautiful?"-Jeongguk "No jeongguk! this is so wrong! get out!" -Jihyo just because of the love Jihyo gave, Jeongguk started to feel something he never felt before.. it is love.. he loves his noona. who is older 5 years thn him.. what happened next.. please read..