The Rikudou/Natsutsuki War Arc

The Rikudou/Natsutsuki War Arc started just before the Rebirth of Kazuma Uchiha.

The Beginning
The War began after Ichirou Otsutsuki was assassinated in his home outside Konohagakure by a Natsutsuki Spy.

The War's Aggression
Ichirou was mourned by his three sons, Haikuro, Kisuke and Hagoromo, who were only 16-18 at the time. Kisuke was more furious than sorrowed, and made his plans that the Natsutsuki Clan should pay. Haikuro and Hagoromo knew very well that war was not the answer to this conflict, but they went along with Kisuke's Plan. At this time was when Kisuke developed his Armor, while the rest of the Clan wore Haikuro's Handcrafted Haori's. The War began at the Konoha Warfield, with the Rikudou Clan, in the lead of Kisuke, Haikuro and Hagoromo, and the Natsutsuki Clan, in the lead of Riyuko Natsutsuki, meeting in battle. The war came in with a bang, with blood being shed allover Konoha's ripe, green grass. During that battle, Haikuro and Nakarimaru met in battle, but they could not come to kill eachother.

The War's Results
The War finished with Kisuke killing Riyuko with his Tanto blade, and Haikuro and Nakarimaru becoming the best of friends, thus resulting in both of them studying the arts of The Sage of Six Paths, each one developing a release. Haikuro developed the Yang Release and Nakarimaru developed the Yin Release, and combining their strengths to recreate the Yin-Yang Release, thus forming the Six Sages of Six Paths.