Gentle (優)
Introspective, somewhat poetic, sensitive and considerate.
Positive (陽)
Cheery and loud, hyperactive in activity and conversation, expresses emotions frankly and transparently, sometimes plagued with self-doubt.
Otaku (宅)
He will only move at a jogging pace than a running speed.
Savage (蛮)
Man of action, doesn't much like words. You won't make as much progress with him through conversation, but getting him to join you in any activity will improve his opinion of you. Very turbulent moods, and cooling him down or cheering him up when he needs it helps your relationship a lot. Reading his moods is difficult until you know him; even when he looks like a coiled spring, he may be in a good mood.