Kazuki Minase (水瀬 一樹 Minase Kazuki ) is a relatively new member of Shinoyama's Divers who escorted Aiko and Yuya to Primary Point. Making up his lack of experience with spirit and enthusiasm, he uses his talents in electronics to support his partner Sagami. He has a prosthetic right arm based on Artificial Organism technology.
Born to a wealthy family, he later fled his old life and became a Diver. At some point since the Burst, he lost his right arm to the Malignant Matter. During a mission as part of Shinoyama's Divers, his prosthetic arm was engulfed by the Matter, giving him visions of Aiko Tachibana's past memories. He would later fall in love with Aiko.
|Main||Aiko Tachibana · Yuya Kanzaki|
|Divers||Daisuke Shinoyama · Maho Shiraishi · Yoshihiko Sagami · Kazuki Minase · Haruka Seri · Kaede Misawa|
|Supporting||Gummi · Hori · Kyōsuke Isazu · Yuzuha Isazu · Kiryu · Susumu Kurose · Akiko Nanbara · Nanami Ozanami · Saho · Original Aiko · Kōichi Tachibana · Royta Tachibana · Yumiko Tachibana · Toshihe Yura|