Jinseon is extremely intelligent, practically and intellectually, having the best grades in her class and also being able to act on the fly and come up with a good strategy on the spot with her quick thinking. She has a strict moral code and never bullied chaerin, unlike most of the others. She thinks rationally and questions things until they are proven. She gets flustered pretty easily, but dosent hesitate to say what she thinks. She is also a bit excitable. She's kind, but honest.