Auri is a centuries-old immortal mage who serves as a central figure in the unconventional family at the heart of the series. Despite his youthful appearance, he claims to be approximately 350 years old, a fact that he uses to excuse his often irresponsible behavior. He has a striking appearance characterized by his vivid red hair and a permanent eyepatch over his left eye, which he removed himself for reasons tied to his mysterious and turbulent past.

His true familial role is somewhat complex. He is not the biological father of Alyssa but rather her maternal uncle. However, due to specific family circumstances, he took on the role of her parent and raised her as his own daughter. This makes him the adoptive grandfather of Viola, a fact that was kept from him for a significant period.

Auri’s personality is that of a charming yet deeply flawed antihero. He is a self-indulgent hedonist with well-known vices for gambling, drinking, and pursuing romantic interests, which has led to him being wanted in multiple kingdoms and even spending time in prison. His demeanor is often reckless, impulsive, and unconcerned with conventional morality, leading to a long history of legal troubles and public scandals. However, beneath this irresponsible facade lies a profound and sincere love for his family. He is an excessively doting father figure to Alyssa and a proud, indulgent grandfather to Viola, showering them with affection and protection whenever the situation demands it.

His primary motivation is his deep-seated need to care for and connect with his family, despite his inability to live a stable life. A significant part of his story arc revolves around his exclusion from Viola's life. Fearing his negative influence on the child's upbringing, Alyssa cut off contact with him for many years, leaving him unaware of his granddaughter's existence. His dramatic re-entry into their lives is driven by a hurt but earnest desire to make up for lost time and to establish a relationship with Viola, which he does by spoiling her with gifts and attention.

Throughout the series, Auri plays the role of both a chaotic instigator and an unexpected pillar of support. His relationships are defined by his impulsive nature. He shares a chaotic but loving bond with Alyssa, who often scolds him for his behavior but ultimately accepts him as her father. With Viola, he initially mistakes her for a stranger and tries to flirt with her, but upon learning the truth, he becomes a fiercely protective and doting grandfather. He maintains a friendship with Fennel and Grinde, frequently drinking with them or giving them questionable advice, though he does not hesitate to threaten them when upset. A notable point of conflict exists between him and the elf Anis, stemming from a past incident where Auri was trapped after courting multiple women in the elf village, leaving him with a lasting wariness.

In terms of development, Auri transitions from a forgotten and excluded relative to a reintegrated, if still troublesome, member of the family. His journey involves learning to navigate his role as a grandfather and reconciling his wild past with his responsibilities. As an immortal mage with centuries of experience, Auri is a powerful magic user and a formidable physical fighter. He often prefers to solve conflicts with force before resorting to spells. A peculiar and traumatic aspect of his background is that he was once forcibly transformed into a woman by his own sister, an experience he claims gave him a deeper understanding of the female perspective, which he cynically uses to his advantage in his romantic pursuits.