Naruto: The System Thinks I'm Weak, So It Gives Me the Rumble-Rumble Fruit

System + Rumble-Rumble Fruit + Nine-Tails Chakra + Eight Gates + Six Powers of the War God + Haki + Demon Blade Enma 【With a system, break through the chaos of the Warring States era with the power of thunder!】 It had been three years since Uchiha Zhanguo transmigrated to the Hokage world, but he still hadn't awakened his Mangekyō Sharingan. That changed when a ninja cat, transformed from a One Piece system, brought him the Rumble-Rumble Fruit. When a thunderstorm erupted from his palm and blasted the roof off the clan head's house, the entire clan saw the ridiculous sight of Fugaku's head smoking. “This new ninjutsu... is a little hard to control.” Zhanguo scrambled for an excuse, only to glimpse Madara Uchiha's Rinnegan gleaming in the shadows. As the Konoha High Command plotted to exterminate the Uchiha Clan, he wielded both the power of lightning and Haki, yet suddenly discovered Itachi's kunai pressed against the back of Mikoto's neck. A Heavenly Thunder Prison against Tsukuyomi: could the Rumble-Rumble Fruit really be the ultimate technique for countering Kotoamatsukami? With a Chidori Sharp Spear in his left hand, he pierced the Nine-Tails, while his right hand unleashed a 300-million-volt Thunder Greeting that flattened the Akatsuki. In this Uchiha civil war, let me, the Lightning Lord, rewrite the night of the clan's destruction!