Shinkichi Hanajiro is a minor villain of Ginga Densetsu Weed: Orion.
He is the leader of his pack in Fukushima Prefecture, consisting of 10 dogs.
After hearing about Ōu's destruction Shinkichi Hanajiro decided to expand his territory and attacked the oldest and weakest pack. He knew this pack was an ally of Ōu, but because of their destruction he knew they would not come to help.
Shinkichi's gang attacked Heizō's family just as Orion appeared on the scene. Orion tried to defend the family, but Shinkichi still killed Heizō's father and two brothers, Junpachi and Yoshinao. His followers followed the fleeing family to the river and Orion again defended the family while they leaped into the water. Once Shinkichi caught up to them, Orion attacked him, accidentally knocking him onto the edge of the cliff. When Shinkichi fell into the water, both dogs got sucked under a large log. Only Orion made it through, Shinkichi got stuck and drowned.