Brian bore the obsessions of six Ninja from Japan.
Among them, the strongest obsession belonged to a fellow named Yagyuu Ittou.
The gift from his obsession was almost equivalent to that of his great-uncle Billy, and the content of the obsession was rather simple: patricide!
The man longed to kill his father, Yagyuu Kojirou.
The remaining five Ninja had initially accompanied Yagyuu Ittou to Los Angeles to challenge Brian's younger brother.
Their obsessions were also straightforward: kill their master!
All five of them shared the same master, a man named Yamamoto Taku.
This meant that Brian only needed to kill these two men to fulfill all six obsessions at once.
These Ninja from Japan had a very high drop rate.
