A male despite his appearance. Starts and ends his sentences with "Guga." Capable of chantless magic. He listens to the advice of the god Guest. An apostle of the god Guest. In his previous life, he was a 35-year-old virgin, unemployed, and a total loser, but he had initiative. Thinking he can start over through reincarnation, he tries to change his personality and lead a new life. He adopts a formal personality and works hard.

Rudeus Greyrat. Famous as "Quagmire Rudeus," he is a perfect master of chantless magic. Incidentally, he is a reincarnated person just like Gugu-Gaga. He hasn't told anyone about being a reincarnated person. He uses tactics involving chantless magic, such as adding rotation and pressure to the intermediate magic Stone Cannon to turn it into a lethal Drill Cannon, or spreading water and electrocuting enemies with lightning. His specialty is "Quagmire," combining earth and water magic to trap the opponent's feet before attacking. He possesses the Demon Eye of Foresight, which allows him to see about 3 seconds into the future. He is married to Roxy and Sylphie. He worships Roxy as a god and founded the Order of Roxy. Rudeus is the only member. There is a sacred object.

Rudeus's wife. Rudeus's childhood friend, she can use chantless magic just like him. Following the Fittoa Region Displacement Incident, she became the guardian mage for Princess Ariel, whom she met in the Asura Kingdom. She reunited with Rudeus at the Ranoa University of Magic and gave birth to their daughter, Lucy.

A Water King-tier mage of the long-lived demon race "Migurd." To Rudeus, she is the master who taught him magic in his childhood and someone he respects from the bottom of his heart. While searching the Teleportation Labyrinth for Zenith, who went missing in the Fittoa Region Displacement Incident, she fell in love at first sight with the person who appeared, not realizing it was Rudeus. Driven by a desire to save Rudeus after he lost Paul, she stayed by his side and became his second wife.

The daughter of Paul and Zenith, and Rudeus's younger sister. After the Fittoa Region Displacement Incident, she witnessed Rudeus fighting with Paul upon their reunion and closed her heart to him. When Paul headed to the Begaritt Continent to rescue Zenith, she was left in Rudeus's care and enrolled in the Ranoa University of Magic. There, she reconciled with Rudeus after he faced her head-on.

The daughter of Paul and Lilia, and the half-sister of Rudeus and Norn. She has a bright and resourceful personality. She was teleported to the Shirone Kingdom with Lilia during the Fittoa Region Displacement Incident. She has adored Rudeus ever since he rescued her. While being taught mindset and manners by Lilia, she serves as a maid for the Greyrat household, including Rudeus and Sylphiette.

A special student at the Ranoa University of Magic and Rudeus's classmate, originally from the Holy Kingdom of Millis, who calls himself a genius mage. He fell in love with Elinalise at first sight and came to love her even after learning of her curse. Recently, he has acknowledged Rudeus's talent, realized he isn't a genius himself, and vowed to become even stronger. A good guy.

The third prince of the Shirone Kingdom. A Blessed Child born with incredible superhuman strength. He admires Rudeus as his master in doll (figure) making. He reunited with Rudeus at the Ranoa University of Magic, where he was sent to study in what was essentially an exile from his kingdom. A good guy.

A maid serving the Greyrat family. She had a relationship with Paul and became pregnant, giving birth to Aisha. She was teleported to the Shirone Kingdom with Aisha during the Fittoa Region Displacement Incident but was rescued after reuniting with Rudeus. Even after losing Paul, she supports Rudeus, Zenith, and the others as a loyal maid.