Kim Jongin is a spoilt brat. He always gets what he wants, no matter what it is. He wants women he gets women. He wants cake he gets cake. He wants to take a in the middle of the garden he gets to take a in the middle of the damn garden. 

He thinks he deserves the best treatment, no wait stratch that, he knows he deserves the best treatment. He gets rid of anyone who he feels do not respect him enough so everyone pretends to respect him (no one actually does though). 

He also thinks he has a beautiful voice and the best dance moves ever; he knows he can work that body (but others claim otherwise- no one has not wanted to gouge their eyes and ears out when they see him attempt to do either, or worse, both) He is not very smart either, and he can't cook without turning the food into unidentificable black lumps of poop. So yeah in short, he cannot do anything. 

Also, did i mention that he's a prince?