This scene can be found in episode 3 of Aldnoah.Zero
[Aldnoah.Zero] Kaizuka Inaho second fight scene VS Martian Knight w/ Beam Katana
[Aldnoah.Zero] Kaizuka Inaho second fight scene VS Martian Knight w/ Beam Katana
[Aldnoah.Zero] Kaizuka Inaho second fight scene VS Martian Knight w/ Beam Katana
WACOCA: People, Life, Style.