The Black Arrow Unit is the elite archer unit of the Han Military, equipped with general Sei Kai's poison arrows.
| Black Arrow Unit | |
|---|---|
 | |
| Group Info | |
| Name | Black Arrow Unit |
| Location | Kankoku Pass |
| State | Han |
| Affiliation | Sei Kai Army; Han Military |
| Status | Defunct |
| Group Personnel | |
| General | Sei Kai |
| Side Infos | |