With Shiro and Tsubasa together in one place, Schtroheim begins to reveal details of the Kabuto family's twisted past - that he and Tsubasa were once engaged, that she eloped with Kouji and Shiro's father Kenzo Kabuto and that before the end of the expedition, she killed Kenzo with her own hands. Their conversation is cut short by the arrival of Baron Ashura, who demands to take Schtroheim's creation - the giant robot Donau α1. Ashura reveals that Schtroheim had agreed to complete the machine for Dr. Hell, as repayment for bringing him back to life after an accident that killed him. However, Schtroheim insists that the machine is not complete and chases Ashura and his forces out of his house. With Ashura gone, Schtroheim and Tsubasa have a cryptic conversation about Mycanae and the Kabuto family but are interrupted by the arrival of the once thought dead Kenzo Kabuto.
Ayumi Fujimura
Shiro Kabuto
Kenji Akabane
Kouji Kabuto
Kazuhiko Kishino
Dr. Hell (voice)
Atsushi Imaruoka
Ankokuji Keiji
Fumihiro Awano
Tetsuya Tsurugi
Hiroshi Naka
Yanosuke Yumi
Kaori Yamagata
Baron Ashura
Kenji Utsumi
Emperor of Darkness
Masaaki Yajima
Zeus
Masayuki Katou
Yasu the Weasel
Minoru Inaba
Count Blocken
Satsuki Yukino
Gamia Q
Seiko Tomoe
Kikunosuke
Tessyo Genda
Cross
Youko Honda
Sayaka Yumi
Miyuki Ichijou
Tsubasa Nishikiori (voice)
Taimei Suzuki
Jūzō Kabuto