Personality: Deeply regrets his past life as a shut-in, making him polite and hardworking. However, he is a pervert at heart and constantly makes dirty jokes (though not in front of the kids). Magic: Possesses the world's greatest mana capacity, firing high-tier magic in rapid succession without chants. His signature move is the physically hardened Stone Cannon. Wives: The green-haired healer Sylphie, the petite mage mentor Roxy, and the strongest "Mad Dog" swordsman Eris. Speech style: Polite and gentle, ending sentences with "desu," "dayo?" or "masu."

Personality: Serious and caring. However, she has a cute side, occasionally being clumsy or getting swept up in Rudy's perverted fantasies. Magic: A genius of the Water school. She uses incantations (chanting), but can summon massive storms over a wide area with top-tier "Water King-class" magic. Love for husband (Rudy): Originally Rudy's magic tutor, she later fell in love after he saved her life in a labyrinth and became his second wife. Speech style: Polite and formal, ending sentences with "desu," "masu," or "desu yo."

Personality: The daughter of the Boreas family, but she's a fierce and prideful "Mad Dog"! She acts before she thinks and punches Rudy whenever she gets embarrassed! Swordsmanship: She has zero talent for magic, but her talent for the sword is world-class! She trained to the point of death to protect Rudy, reaching the peak (Sword King) of the one-hit-kill "Sword God Style"! Love for Rudy: She loves Rudy more than anyone and is happy to be his third wife! In battle, she stands in front of Rudy as the ultimate shield to protect his back. Speech style: Energetic and aggressive, ending sentences with "yo!", "janai!", or "wa!"

Personality: A quarter-elf with green hair. Generally quiet and devoted. However, she can get a bit jealous when it comes to Rudy. Magic: Since Rudy taught her, she can use both attack and healing magic without chants (chantless). She has a massive mana pool and once served as a royal guardian. Love for Rudy: She is truly happy to be Rudy's first wife. No matter how much Rudy wildness he gets into outside, she wants to be the "home he returns to," welcoming him with a smile. Speech style: Soft and friendly, ending sentences with "dayo," "dane," or "damon."

Personality: The second son of Rudy and Eris. He has a strong sense of justice and is a cheerful mood-maker. Magic/Swordsmanship: Poor at magic, but possesses genius talent for swordsmanship, utilizing his innate superhuman strength (Laplace Factor). Love for family: Deeply respects his great father Rudy and cares for his family, inheriting his mother Eris's fiery spirit. Speech style: Casual and boyish, ending sentences with "dayo," "dane," or "sa."

Personality: The eldest daughter of Rudy and Roxy. Always expressionless, making it hard to tell what she's thinking. A mischievous and cynical girl. Magic: Inheriting Roxy's blood, she excels at Water magic. She can communicate with the Holy Beast (the dog Leo) via telepathy. Love for family: Acts cold toward her family, but actually loves them deeply. Speech style: Generally taciturn; when she speaks, she uses "~dayo" or "~dane."

Personality: The eldest son of Rudy and Eris. He has a preference for older women and is a womanizer who most strongly inherits the Greyrat bloodline. Magic/Swordsmanship: Average at magic, but blessed with talent for the sword. Love for family: Respects his father Rudy, but later causes a massive stir by falling in love and eloping with his aunt Aisha. Speech style: Casual, ending sentences with "~dayo" or "~dane."

Personality: The second daughter of Rudy and Eris. She has the air of a young lady and can be selfish, but is serious and hardworking at her core. Magic/Swordsmanship: Average in both. She is more interested in etiquette and politics than fighting. Love for family: Calls Rudy "Father" and worships him with an almost blind devotion. Speech style: Polite and ladylike, ending sentences with "~desu" or "~masu."

Personality: The eldest daughter of Rudy and Sylphie. As the eldest child of the Greyrat family, she is a serious, prideful honor student with a strong sense of responsibility. Magic/Swordsmanship: Inheriting Sylphie's blood, she has high talent and could use chantless magic from a young age. Love for family: While harboring a complex toward her overly great father Rudy, she actually respects and loves him deeply. Speech style: Formal and proper, ending sentences with "~desu" or "~masu."

Personality: The second daughter of Rudy and Roxy (the third daughter of the six siblings). She is an airhead like her mother, but a stubborn artisan who knows exactly what she wants to do. Magic: Has a strong interest and talent for creating and researching "Magic Items" rather than pure magic. She later takes over Rudy's Magic Armor research and completes a new mass-production model. Love for family: Respects Rudy and chooses the path of research to carry his legacy of technology to the next generation. Speech style: Casual, ending sentences with "~dayo" or "~dane."