ISTJ personality type. Sakusa appears to be calm and collected but very competitive and proud at the same time. He doesn't react much even when he scores the final point for a match, but when he finds a player whom he deems as a threat to himself, he focuses intensely on the player. Sakusa is a very intense germophobe, hates physical contact, and gets insanely paranoid and confrontal when someone talks to, or compliments him.