xiao is he future heir for the king role in the kingdom . they got a big empire and xiao's family is extremely wealthy . however , xiao is sick . he suffers from mysterious illness , and is sick badly . the side effect of the illness is xiao couldn't gain weight and lose appetite , causing him to lose weight as well . his weight keeps dropping and xiao is skinny . he barely could sleep at night and is lonely . he is miserable . no one wants to marry a future king who suffers from such diaseas in the empire , even xiao's family try to pay people to marry him , but no one agree to take care a sick man . except.. a this one person .

"you.. are willing to marry a sick person like me when other's avoid me..?" xiao ask , a bit surprised with this information .