Tan appears to be a middle-aged man with pale skin and short, medium brown hair. He wears a gray-brown jacket and trousers with a matching hat.
Tan seems especially critical towards his son Ran, who he feels is not living up to his potential to become a great magician. He continually compares him to his older brother Lutz, who is studying at Eloth University.
During the D997 Youth Fighter Competition, Tan criticizes his son Ran for participating in childish activities instead of attending the Magic Academy, from which his friends had already graduated, and asks him why he was not more like his brother Lutz.
(3) Ran recalls a conversation with his mother, who advises him to find someone who lives longer than him to love, because a person with a shorter lifespan will grow distant from him over time. Ran deduces that this very issue has created some friction between his mother and father.