Mami Satō is a minor supporting character in the anime MF Ghost. She is a member of the MFG Angels, the race queen team that entertains spectators and assists with race operations during MFG events. She is assigned angel number two. Mami is a young woman with brown hair and brown eyes, and she is older than the protagonist, Kanata Katagiri.

Her personality is marked by a bold and attention-seeking nature. Among the Angels, she is known for a deliberate habit of not adjusting her costume after standing up, allowing her underwear to be partially visible. This behavior has earned her the nickname "Hamiketsu no Mami" among the other Angels and fans. Despite this outwardly confident and flirtatious demeanor, she is genuinely attracted to Kanata. After the second race, she approaches him and hands him a slip of paper with her email address, implying a willingness to have a private relationship with him. However, Kanata inadvertently loses the paper, effectively ending any potential contact. She later admits during a question segment that she finds Kanata's serious racing expression cool, but his intense professional aura makes her nervous and keeps her at a distance.

Mami’s role in the story is primarily that of a background character who contributes to the atmosphere of the races through her work as an Angel. Her main narrative function is to illustrate the fanfare surrounding MFG and to add a layer of romantic tension, particularly as she develops a one-sided interest in Kanata. This places her in mild, unspoken rivalry with Ren Saionji, another Angel who also has feelings for Kanata.

She does not undergo significant character development or demonstrate any special abilities beyond her duties as a race queen. Her motivations are largely driven by personal attraction and a desire for attention within the high-energy environment of MFG. Her background before joining the Angels is not explored in the available material.