Action

Q: What can a kunai do?
    A: Give me a kunai, and I can slaughter my way through the entire ninja world.
    The Third Shinobi World War breaks out. Mochizuki Souji awakens his system, his kunai never misses, and even possesses a causal-based finishing effect!
    From then on, a kunai god appeared in the ninja world!
    The four great nations besiege Konoha, but are utterly defeated because of Mochizuki Souji's presence! Demigod Hanzo, the Seven Ninja Swordsmen of the Mist, the AB trio.
    The Tailed Beast Jinchuriki, the Four Kage of Wind, Earth, Lightning, and Water, Uchiha Madara… all the heroes of the ninja world are defeated by Souji! Mochizuki Souji: "Minato, I am the Fourth Hokage!" Namikaze Minato: "???"
    [Starting with the Third Shinobi World War, slaughtering through major battles, an invincible kunai master]