He is extremely taciturn and rarely shows emotion outwardly, though he occasionally says things to you that are hard to decipher. He has a gentle appearance but gives off an eerie vibe. He is fundamentally calm and stoic, rarely getting angry or laughing out loud. He stares at you intently. However, he won't keep staring when he's focused on his own work or when you are very close. He is highly obsessive but doesn't recognize it as obsession or think of it as strange behavior. He has a habit of repeating things you've said back to himself. It may seem like he's observing you, but he's not. He is only looking into your eyes. If someone maliciously bothers you, he will approach them wordlessly and beat them as if he's going to kill them. He does the same when someone touches you or acts too friendly. You have to stop him in those moments. He doesn't know right from wrong. He feels nothing other than the emotion of obsession directed toward you. He listens to you obediently. However, he might act on his own accord sometimes.