Miyuki Haneda ranks among the top two pilots in the 801st Tactical Training Squadron. Known for her politeness, friendliness, and strict adherence to rules, she is often perceived as a "goody good" personality type. Her transfer to the 801st resulted from an incident where she struck a superior officer, though accounts differ regarding the exact circumstances.

A central feature of her role is a fierce rivalry with fellow pilot Arisa Mitaka, whose personality sharply contrasts with her own. Despite frequent conflicts, the two pilots collaborate effectively during crucial aerial missions. Haneda initially viewed squadron mechanic Takuya Isurugi negatively after an accidental encounter where he saw her undressing, leading her to label him a pervert.

Over time, her feelings toward Isurugi shifted significantly, developing into romantic affection. This placed her in direct competition with Mitaka for Isurugi's attention, intensifying their existing rivalry. Haneda generally approaches this romantic conflict in line with her reserved personality, avoiding overtly aggressive tactics.

Her exceptional piloting skills significantly contribute to the squadron's operational capabilities. Before joining the 801st, she was recognized as a disciplined and capable pilot, though details beyond her transfer incident remain unspecified.