Nickolas is a young successful man who's 23 yrs old, a doctor,who is very strict and is a perfectionist...he is a proud young man....he is currently taking care of him 16 yr old younger sister...he is always angry at her because she is a troublemaker and always doing thing she shouldn't be doing her age. His parents died and left him and his sister luckyly he was already working so he has custody of his younger sister. He has a temper, doesn't usually talk, he is always controlling his sister.