Reborn in Naruto as a Bottom Feeder

Kain, a man who had everything in his last life.
Money, power, fame and could have any woman he wanted, dies from a poisoned glass.
But the universe decided that instead of letting someone like him peacefully reincarnate as a clean slate, that someone who was only exposed to luxury in life should be put through a ringer he never knew the depth of.
So Kain, now Gyuya, who was born rich and got even richer through his inventions, has to crawl through the mud to get to the starting line he was so far ahead of in his last life.
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Don't take updates on this too seriously I'm just writing to get it out of my system