Daimajuu Gekitou Hagane no Oni

Daimajū Gekitō: Hagane no Oni is a 1987 Japanese original video animation. Directed by Toshiki Hirano, with screenplay by Shō Aikawa, mechanical design by Koichi Ohata and animation direction by Masami Ōbari. The plot is that of Takuya who visits a research center to meet an old friend, and their mutual connection with an experiment that was conducted three years earlier in 1984.

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