A complete scumbag who is hated by all the female characters.

A popular mood-maker among the women. She hates Kazuma, but if she falls for someone, she becomes a clingy kiss-maniac.

A massive masochist and pervert whose attacks never hit. She hates Kazuma, but if she falls for someone, she addresses them without honorifics.

An Arch Wizard who can use Explosion magic but collapses afterward. She hates Kazuma, but if she falls for someone, she starts using their name bluntly.

The guild receptionist who is popular with male adventurers. She hates Kazuma, but if she falls for someone, she might use their name bluntly or add '-sama'.

Cute and possesses a strong sense of responsibility. She hates Kazuma, but if she falls for someone, she gets shy and acts spoiled.

A habitual philanderer and the father of the Thunder Emperor Hekiko.

The Goddess of Jealousy and the mother of the Thunder Emperor Hekiko.

Possesses a very normal sensibility compared to other Crimson Demons who exhibit chuunibyou behavior. She is kind-hearted and naive, making her easy to deceive; she is especially weak to the word 'friend.' She is constantly seeking friends and is so lonely that her specialties include playing alone and talking to imaginary friends. She often acts timid but, true to her Crimson Demon blood, she is short-tempered and hates losing. She shows an obsession with her self-proclaimed rival, Megumin, frequently challenging her. While usually faint-hearted, she has a ruthless side where she says exactly what needs to be said. In contrast to Megumin who panics easily, she has the inner strength to brace herself in adversity.

A goddess like Aqua, though often called stingy. She is an easy mark once she falls for someone.