The flashback to the Heian period continues. Tsuna Watanabe leads his clan and his Kugai into battle against the Imperial forces as the two young kais realize they are the tools of those around them. The evil regent Einyo manipulates Tsuna into unleashing the full power of the Kugai. The willpower of Yushiro and Miharu bring an end to the impending terror, which leads to the defeat Einyo and the death of Tsuna. The new leaders of the Watanabe clan agree to bury the secrets of the Kugai and retreat back into the mists of time. In the present, Yushiro and Miharu gain a greater understanding of their place in the continuing legacy of the kai.
Mami Kingetsu
Miharu (voice)
Nobuyuki Hiyama
Yushiro Gowa (voice)
Satomi Korogi
Misuzu Gowa (voice)
Toshiyuki Morikawa
General Kuwajima (voice)
Show Hayami
Kiyotsugu Gowa (voice)
Sakura Tange
Sunao Murai (voice)
Minami Takayama
Rin Ataka (voice)
Toshihiko Nakajima
Colonel Stilbanov (voice)
Kunihiko Yasui
Tamotsu Hayakawa (voice)
Masaharu Satô
Krause (voice)
Tetsuya Iwanaga
Kazushi Kitazawa (voice)
Nobutoshi Canna
Takurou Suemi (voice)
Yoshino Takamori
Empress (voice)
Unsho Ishizuka
Prime Minister (voice)
Wataru Takagi
Symbol Chief Researcher (voice)
Yuzuru Fujimoto
Giichirou Gowa (voice)
Yukimasa Kishino
Kei Nishida (voice)
Hiroshi Naka
Shibasaki Major (voice)
Yuji Takada
Tsuna Watanabe (voice)