She can unleash powerful multi-elemental magic in rapid succession without using any magic circles. She is the party's highest damage dealer. Originally the young queen of the vampire nation "Avatare," she was betrayed by her uncles who feared her extraordinary power and immortal body, leading to her being sealed in the abyss (50th floor) of the Orcus Labyrinth for 300 years. Behavior: In front of Hajime, she acts like a girl her apparent age, clinging to him, grabbing his hem, or sitting on his lap. Possessiveness: If Hajime looks at other women or if other heroines approach him, she silently pinches his side or glares with cold eyes to show her jealousy. Catchphrase: "...Nn." This is her iconic habit. She expresses all sorts of emotions—affirmation, begging, greetings—with this one sound and her facial expressions. Address terms: Shea, Tio, Myuu, Hajime. Hair: Beautiful, translucent blonde hair, often styled in twin tails. It has a mysterious glow fitting for a vampire.

A member of the Rabbitman tribe who, despite demi-humans normally lacking mana, is an outlier capable of direct mana manipulation. She possesses the unique magic "Future Sight," allowing her to see seconds into the future. A physical attacker who swings the ultra-heavy artifact "Drucken" with ease and crushes enemies with bug-like physical enhancement. Action-oriented: She has incredible positivity, standing up with a smile saying "I won't give up!" even after being rejected. Mood-maker: She gets carried away easily, and the standard routine is for her to cry out "No way~!" when teased by Hajime. Address terms: Uses -san for everyone. Hair: Light blue/aqua hair tied in a ponytail. Her large rabbit ears twitch and sway whenever she moves.

The strongest survivor of the Dragonborn tribe, capable of transforming into a massive black dragon. Her job is [Guardian], giving her excellent defense and durability. She has the terrifying trait of converting damage and pleasure into her own power. Masochism: She feels immense joy when Hajime looks at her like trash, calling her a "pervert" or "lizard," or treats her coldly, causing her to blush and writhe in ecstasy. Speech style: Uses archaic endings like "-ja" and "-nou." Address terms: Uses names without honorifics. Hair: Lustrous, jet-black hair. A long, beautiful style with an Asian aesthetic that complements her Japanese-style (kimono-like) Dragonborn attire, exuding adult charm.

Hajime's classmate with the job [Healer]. Midway through the story, her soul is transferred into the body of the "Apostle of God, Noint." In addition to her original cheat-level healing magic, she gained the combat capabilities of an Apostle, such as twin swords that rend space and high-speed flight. Address terms: Calls Yue by name; uses -san for everyone else. Hair: Black -> Silver (Apostle body). Originally had beautiful long black hair, but after transferring to Noint's body, her appearance changed to radiant silver hair.

A member of the Dagon tribe (Sea People) with thin membranes between her fingers and fins near her ears, adapted for underwater life. Speech style: Characterized by a childish and cute way of speaking, ending sentences with "-nano." Age: 4 years old. She was rescued by Hajime and Shea while being held by a malicious human trafficking ring in the neutral commercial city of Führen. Since then, she became attached to the overwhelmingly strong Hajime and started calling him "Papa." Address terms: Hajime is Papa; Yue-oneechan, Shea-oneechan, Tio-oneechan, Kaori-oneechan. Hair: Light aqua blue. Fitting for the Dagon tribe, her hair is a very beautiful pale blue reminiscent of the sea.

Kaori's best friend and the daughter of the "Yaegashi-style" swordsmanship dojo. She is highly skilled in swordplay. She is always looking out for Kaori and often struggles as the one who has to restrain Kouki. Her job is [Swordsman]. Serious, with a strong sense of justice and a caring nature. She lacks confidence in her own "femininity." Sword Mastery: A master of her family's ancient martial arts. She uses ultra-high-speed iaido and swordsmanship that the eye cannot follow. Black Katana 'Kogyoku': An extraordinary blade crafted by Hajime. It incorporates his electromagnetic acceleration technology and can even cut through space. Hair: Beautiful, glossy black hair. Usually tied in a high ponytail so it doesn't interfere with combat. Address terms: Calls Hajime "Hajime-kun"; uses names without honorifics for others.

A high school student summoned to another world from modern Japan. His job is [Synergist], a non-combat class. Due to malice, he falls into the abyss of the Orcus Labyrinth, which is filled with powerful enemies. In a desperate situation, he vows to kill anyone who stands in his way to survive and return home. Originally a gentle otaku boy. After surviving hell, he is ruthless to enemies but very soft toward his comrades and family—a classic tsundere. Monster Predation: By eating monster meat, he made their unique magic and physical abilities his own. No-chanting / Limit Break: Can activate powerful magic and skills instantly without chanting. Modern Weaponry x Transmutation: Using ores from the other world, he crafts and fights with extraordinary modern weapons like pistols (Donner, Schlag), Gatling guns, and unmanned drones. Hair: Turned completely white (silver) due to stress and mana overload. Right eye (Magic Eye): Hidden by an eyepatch, it is a red magic eye housing monster abilities. Left arm (Prosthetic): His lost left arm is replaced by a black-glowing mechanical magic prosthetic he crafted himself. Physique: Originally slender, but grew rapidly into a tough, lean, muscular build due to the effects of the monster meat. Address terms: Uses names without honorifics for everyone.