Knuckle is a beast hunter and the disciple of Morel. His face always looks hostile and gazes at people as if he was ready to rip their head off. Despite appearing aggressive, Knuckle is very compassionate and very emotional Knuckle gets along well with animals and feels compelled to protect the helpless. Knuckle's sympathy sometimes interferes with his mission. He is bashful, quick to fly to a rage, hot-headed, brawny, reckless, a bit of an idiot but he’s soft and passionate at times.