When in contact with other beings, Juggler has a smug behavior, but doesn't make much effort to hide his evil nature, by always showing looks of insanity and demonstrating odd behavior, such as casually reminding bystanders of human's mortality: how they will all die, like everything that is living.

In addition, Juggler enjoys fighting Gai in hand to hand combat rather than using his Jashin Blade, preferring to beat Gai on his own. He also can't stand the melody Gai plays on the Orbnica, and receives long lasting migraines if he hears it playing.

His relationship with Gai is notable, in that he has a long lasting grudge, and is always trying to get him to either fight him, or taunting him in several ways. This is however one of the leading factors to his mental breakdown, as well as his defeat when fighting against the Ultra Warrior in their gigantic proportions.