KIM JUNGWOO (Swallow the Sun): ISTP
Introverted Thinking (Ti): ISTPs are introverted thinkers, which is exactly what it sounds like. When dealing with information, they process it internally. Because of this, they tend to be quiet people and don’t tend to think verbally. ISTPs are logical and push away emotional matters when solving problems or making decisions. Kim Jungwoo is the same way. He ignores his emotions and thinks through most decisions he makes. They are action oriented, wanting to get things done as soon as possible and move on. ISTPs are difficult to get close to because of these qualities. It takes Soohyun so long to get Jungwoo to open up even a little bit. Like an ISTP, Jungwoo appears cold and mysterious.
Extraverted Sensing (Se): ISTPs are not ones to dedicate themselves long term. They focus on the “here and now” instead of future plans. They enjoy learning about the world around them through their senses and take in information that way. They will try new things just because they want to. Jungwoo tried several new things throughout the drama. He goes to Seoul with no hesitation, works in the US, becomes a mercenary, and eventually works with his father’s company. He risks his life just to feel a different sensation. However, he didn’t do these things without a solid and practical plan behind it. He knew that he would eventually revenge his father and had it all laid out before hand.
Introverted Intuition (Ni): This function is weaker, but that does not mean it is not used. Although ISTPs don’t typically enjoy theories, they will take the concepts or ideas their mind come up with and apply them practically. Their Ni also helps them go by their “gut” instead of overly thinking out their decisions. Kim Jungwoo is usually very thoughtful when making decisions, but he does reach a point where he just does whatever he feels in the moment.
Extraverted Feeling (Fe): Being the weakest function, it is the least used by ISTPs, but it is still used in their lives. Their Fe makes them desire to solve their loved ones’ problems in a practical and logical way. When an ISTP is in a serious relationship, they will put more effort and intention into it. ISTPs’ Fe can also be more apparent in times a stress. If their emotions are not dealt with in a healthy way, it will boil over and explode in very unhealthy ways. When Kisang passes away, Jungwoo over indulges himself in bad habits and becomes miserable. Soohyun definitely helps Jungwoo express his emotions in a healthy way eventually, but it takes a long time to get there.
