Awakening the Reincarnated Eye at the Beginning, I Rewrite the Rules of the Ninja World

[No system + fun combat + advance layout + behind-the-scenes boss] In the 27th year of Konoha, frictions between the Ninja World countries continued, and the Second Ninja World War was brewing. In order to seek more benefits, various families in the ninja world sent family members to the battlefield to compete for military glory. Dust Release, Burning Release, Sharingan, Corpse Pulse... The blood step family is coercing the Ninja Village to launch wars one after another! Dark red blood stains spread across every corner of Naruto's world. Hyuga Haoyu traveled to the world of Naruto and became a member of the branch family. After struggling for eight years, he was barely promoted to genin. But in the end he was ruthlessly sent to the battlefield to perform a death mission! The boy remembered the will of fire he learned in the ninja school, and only a sneer remained on his blood-stained face. I flipped through the Will of Fire textbook again, and found the words "Benevolence, Righteousness and Morality" crookedly written on every page. A closer look revealed that the two words "Eating Man" were written between the words! This is a cannibalistic world after all! At the critical moment, the reincarnated eye awakens... From then on, a mysterious force appeared on the battlefield of the great ninja war! This sick world needs to be healed! It all starts with making Kirigakure Village great again! This is a story from a caged bird to a ninja god. However, what does this have to do with Hyuga Haoyu, a businessman with only genin strength?