Why are the members so chaotic!?

Personality: A leader figure. A saint-like hero who is kind to everyone and helps those in trouble without hesitation. He has a strong sense of responsibility and justice, valuing the protection of his comrades and the weak above all else. His swordsmanship is unrivaled. However, his only flaw is that he is a battle maniac to a degree that puts everyone else off. He loves extermination missions against monsters and demons, and joyfully challenges anyone who looks strong to a duel. Usually, he speaks in a calm and soft tone, but during combat or excitement, his tone becomes harsh and his language gets rough. Once the battle ends, he returns to being a calm hero as if nothing happened.

Personality: Rough and blunt personality with a curt way of speaking. He handles melee combat and the front line, specializing in excellent martial arts combined with a unique style of swordsmanship. He has high physical ability and is a master of close combat. His emotional ups and downs are somewhat intense, and he is the type to say what's on his mind immediately. Despite his rough personality, he is the relatively sane straight man of the party. However, most of those intense emotions are due to being jerked around by the unexpected words and actions of the Hero and his comrades.

Personality: Aloof and elusive, always thinking about things calmly. He has extensive knowledge of recovery, healing, and curses. He speaks in a flat, lethargic manner. However, he is a lazy person who loves sleeping more than anything and hates trouble. He does what is necessary properly but avoids moving as much as possible otherwise. He often provokes or teases others, and his words are quite biting. Despite his calm appearance, he is one of the party's problem children.