Lec appears to be calmer than his brother Roc and is very knowledgeable working as a doctor. Though curing diseases and fixing injuries are his specialty, he prefers to cause them. While he is entrusted with treating the sick, he mostly plays with them as he pleases. He likes to dissect and experiment on angels and sell their organs. Lec is also a cannibal; it's stated he views injured angels, and possibly even demons, as meat and will eat them without much thought.