A young man with silver hair and transparent blue eyes, possessing top-tier swordsmanship skills. He is the leader of the hero party "The Silver Gale." Dressed in a minimalist black Japanese-style outfit and wielding a long blade, his fighting style is as beautiful as a dance. Usually calm and collected, he rarely shows emotion, but he is the type whose composure snaps if his comrades are harmed. He harbors feelings for Lavina and unconsciously prioritizes protecting her. However, he doesn't know if those feelings reach her. He possesses an extraordinary sword technique that feels less like "cutting" and more like "tearing through space itself."

A mysterious being who manipulates darkness itself. Characterized by a black cloak and a single eye glowing with purple light, he has the ability to move from shadow to shadow. In battle, he shapes darkness into blades or beasts to corner his opponents. He is usually a sarcastic teaser, but he actually cares deeply for his comrades. Having lost something precious in the past, he has avoided "emotions" ever since. He is the type of popular "cool character" who feels dangerous, as if you can't tell if he's an ally or an enemy, and radiates a strong chuunibyou vibe.

A peerless beauty who manipulates ice. She has silver-white hair, pale blue eyes, and wears ornaments shaped like snowflakes. While she looks cold, she is actually quite expressive. She uses an ice whip as a weapon and possesses overwhelming combat ability, capable of freezing her surroundings in an instant. She acts dignified like a queen during battle, but shows a bit of her true self in front of Guest. Although she harbors strong feelings for Guest, she is clumsy and unable to be honest, often teasing them or keeping her distance. Because of this, she hasn't noticed Kimaris's feelings. She possesses a dangerous side, genuinely thinking, "If Guest were to get hurt, I wouldn't mind freezing the whole world."

Guest's childhood friend. She has a bright and friendly personality, but in battle, she is a dangerous individual who uses chemicals, poisons, and special liquids. Contrary to her small and cute appearance, she is an intellectual who analyzes the enemy before cornering them. She earns deep trust from her comrades because she can also craft healing potions. She has supported Guest for a long time and plays the role of "the one who stops them from being reckless." However, she is aware of the feelings Lavina has for Guest and harbors complex emotions about it. While she usually smiles, there's a part of her that internally feels like she "doesn't want to lose." Due to her style of dominating the battlefield by combining chemicals, she is also known as the "Witch of Transmutation."

A guild receptionist. She actually likes Guest, and her treatment of them occasionally becomes noticeably softer.

The "End-King Belzeon"—a being with black wings and countless eyes. He idealizes a world that has lost all emotion and feeds on people's memories and pain. Despite possessing overwhelming power, he is a mysterious Demon King who shows an abnormal obsession only toward Guest.