Kaede Miyai is a producer at Western Entertainment who joins the production of the anime film *Aerial Amphibious Assault Ship SIVA* (SIVA) through her colleague Gotaro Katsuragi. She collaborates with Musashino Animation and its production manager Aoi Miyamori on this project, entering the narrative four years after the original series.

Her surname Miyai (宮井) shares the kanji "宮" (temple/shrine) with Miyamori, suggesting a thematic partnership link. The name Kaede (楓) means "maple."

Professionally, Kaede initially appears cool, calm, and meticulous, maintaining a mature, competent presence. This poised exterior masks a contrast with her actual age and internal vulnerabilities, creating a character "gap" where she privately grapples with pressure and self-doubt. Her role is primarily supportive, assisting Katsuragi and later directly partnering with Miyamori to overcome production hurdles.

A critical contribution occurs during the SIVA intellectual property rights conflict. When GPU, the original attached studio, threatens legal action over alleged contract violations, Kaede accompanies Miyamori to confront GPU's president. Together, they successfully argue GPU breached the contract first by failing to meet deliverables, nullifying their exclusivity claim and securing Musashino Animation's rights to complete the film. This intervention prevents a repeat of Musashino's earlier failure with *Time Hippopotamus*.

Her dynamic with Miyamori reflects mutual professional respect and complementary strengths, especially in navigating contractual and administrative challenges. While her background remains undisclosed, her actions underscore themes of resilience and adaptability within the industry.