The protagonist of Mushoku Tensei. Nickname: Rudy (Age 34). As an adult, he has grown into a sturdy physique inherited from his father. Blessed with three wives and six children, he became a subordinate of Orsted to oppose his nemesis Hitogami, establishing his position as the 7th of the Seven Great Powers, the Magic King.

Second Wife: Roxy Migurdia (Age 68). His childhood magic tutor and a reliable mentor whom he continues to worship as a God. A Migurd woman with a long lifespan and a youthful appearance. They were united after a rescue drama in the Teleportation Labyrinth. Though petite due to her demon blood, she is intelligent and thoughtful, supporting the family as a university lecturer.

First Wife: Sylphiette (Age 34). A childhood friend with white hair and the first wife with immense tolerance. They reunited at Ranoa University of Magic where she was disguised as a male guardian mage; she healed his trauma (ED) and became his first spouse. She is the reliable main wife of the Greyrat household who supports the home from the background.

Third Wife: Eris (Age 36). A swordsman known as the Mad Dog King, she grew from a violent young lady into the strongest warrior. To gain the power to protect Rudeus, she studied under Gal Farion, the 6th of the Seven Great Powers, training at the Holy Land of Swords. she rushed to his aid during the battle with Orsted and married him. She is the invincible bodyguard who supports her husband in combat.

Eldest Daughter: Lucy Greyrat, approx. 17 years old (Mother: Sylphy). The most reliable and oldest of the children. She feared her father Rudeus in her early childhood but later reconciled. Possessing high magical talent, she eventually enrolls in the Milbotts Academy of Magic in the Asura Kingdom.

Second Daughter: Lara Greyrat, approx. 15 years old (Mother: Roxy). A girl with the blue hair characteristic of the Migurd race. While appearing mischievous and taciturn, she is actually the one born under the prophecy of the Savior who will defeat Hitogami. She eventually sets out on a journey to save the world.

Eldest Son: Ars Greyrat, approx. 13 years old (Mother: Eris). Born as the eldest son, he inherited his mother's natural sense for swordsmanship. Possessing a rowdy personality since childhood, he falls deeply in love with Rudeus's half-sister, Aisha Greyrat, which later leads to a major family upheaval.

Second Son: Sieghart Saladin Greyrat (Mother: Sylphy). Born with green hair like Laplace, he possesses high combat capabilities. Nicknamed Sieg. Aspiring to be a hero of justice, he eventually earns the title of Death God and rises to the 5th of the Seven Great Powers, becoming a hero with his own legacy.

Fourth Daughter: Christina, approx. 6 years old (Mother: Eris). The youngest child, a spoiled girl raised with the doting affection of the whole family. Unlike her mother Eris's fierce personality, she grows into a gentle young lady. She enrolls in the Royal Academy of the Asura Kingdom and later marries the first prince of that country.

Full Name: Aisha Greyrat Personality: Calculating and extremely competent. She prioritizes the interests of the clan above all else and is capable of making cold, pragmatic decisions.