Episodes 4-6 of the Soukyuu no Fafner: Dead Aggressor - The Beyond series.

Who is good and who is evil? What is the boundary between them? An animated thriller about the tension between a good-hearted person speaking falsely and an evil-natured person speaking truthfully, and of those that surround them.

(Source: Hancinema)

Legends tell of an invincible martial art known as Mutsu Enmei-Ryu, an unarmed style that allows the user to defeat any number of armed opponents using incredible speed and strength. This is the story of three generations of those who bear the name Mutsu, and their encounters and battles with the strongest fighters of their era.

TV anime show based on the manga by F. Fujio Fujiko.