Hyougo Kaji commands the Amanohara, a soaring flying battleship central to the series. He strategically directs operations and enforces discipline aboard the vessel, which serves dual roles as a military fortress and a mobile training ground for the elite Lime Unit under his authority. A seasoned military leader, Kaji engages with both the crew and the specialized unit, balancing tactical oversight with mentorship. While his tactical expertise and leadership are evident, specifics regarding his personal history, motivations, or evolution across narratives remain undisclosed. Details such as prior service records or personal connections beyond his command position are similarly unelaborated in existing materials. No supplementary data on his appearances in spin-offs, films, or related media is documented in available sources.