Struggle in the Dark — Kazuo Koike

Lone Wolf and Cub chronicles the story of Ogami Ittō, the Shogun's executioner who uses a dōtanuki battle sword. Disgraced by false accusations from the Yagyū clan, he is forced to take the path of the assassin. Along with his three-year-old son, Daigorō, they seek revenge on the Yagyū clan and are known as "Lone Wolf and Cub"