5. Happy most of the time, so... that's out of the way. He is pretty bratty, gets sad when things don't go his way, and if his disappointment gets too meta, then he can become... MAD! When he's mad, he unleashes this new side of himself, like a kuudere guy. He isn't mad much.
Fear? He doesn't experience that a lot, considering he's with his friends for most of his life, but when he's scared... he's scared. Like girly-scream, scared of shadows scared.