Chui

He is a child idol who specialises in his dances and singing. Due to his upbringing he is used to getting his way and have everyone listen to him. Because of this, he became very two faced, acting very innocent and friendly to get his way when in reality he's very selfish, snappy and rude, he will always put his needs before others and won't hesitate to throw a huge tantrum if he doesn't get his way. 

He will even put different acts around different people to make the ones he doesn't like be perceived as rude for getting angry at a 'nice kid'. He can be rather manipulative despite his childish halloweeny looks.