The Kuroya (黒屋) were a group assassins led by Jyuzou.
- Ranzou (すけこましの乱造 Sukekomashi no Ranzō) is tall lanky guy who loves to see woman suffering.
- Shinogi (鎬) has the goal to kill one thousand people before he himself dies.
- Shou (黙りの硝 Danmari no Shō) is the member of Kuroya that is hand picked by Jyuzou.
- Hitoha (単葉) is a mysterious shinobi of the Kuroya, his goal in life was unknown.
- Futaba (双葉) younger sister of Hitoha. Former Hagakure Ninja.