Mikaze Honjou, born into a family steeped in elite piloting heritage, initially resists her legacy, entering at sixteen as an indifferent trainee in a secondary defense unit tasked with intercepting meteor debris when primary orbital defenses falter. Her apathy wanes as exposure to critical missions reshapes her understanding of planetary defense, propelling her from a low-ranking role into high-stakes operations alongside peers Shizuha Doi, Ayamo Nakamura, and Karin Kikuhara. Together, they navigate sudden meteor trajectory shifts, political sabotage, and the uncovering of extraterrestrial entities that manipulate human cognition—collaborating to counter threats despite bureaucratic resistance.

Clashing with her accomplished older sister, Mikaze grapples with familial expectations, her initial reluctance clashing with inherited duty. Through frontline experiences, she reconciles these tensions, cementing her dedication to piloting. As cosmic threats escalate, she evolves into a mentor for recruits while maintaining focus on her core team’s cohesion.

Her once-distant dream of space exploration materializes through orbital defense missions and encounters with advanced spacecraft, leading to direct confrontations with extraterrestrial phenomena. Loyalty to her team anchors her during crises, from Karin’s abduction by hostile factions to exposing government conspiracies, demanding resourceful adaptability.

Later challenges test her psychological resilience against emotion-manipulating entities, victories relying on collective strategy over solo heroism. Narrative threads consistently trace her evolution from reluctant participant to steadfast defender, interweaving personal growth with cosmic and societal conflicts—all without diverging from her core trajectory in televised series, OVAs, and spin-offs.