Naruto: Simultaneously Inheriting My Countless Futures!
“When you read these words, I am already dead…”
“Please take good care of my last will and my ashes safe.”
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During the Third Great Ninja War, Kiyohara was nothing more than a disposable pawn, a true cannon fodder. He lived each day believing death could come at any moment—if not today, then tomorrow.
But unexpectedly, he received the Last Will System. With it came the ability to obtain the will of himself who had died in different versions of the shinobi world.
By fulfilling the last wishes of his other selves, he could inherit their abilities, even stack their talents upon his own!
Thus, Kiyohara gained the support of countless versions of himself:
“Anbu Captain Kiyohara”
“Akatsuki Member Kiyohara”
“Missing Nin Kiyohara”
“Mizukage Kiyohara”
“Uchiha Kiyohara”
“Ōtsutsuki Kiyohara”
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“What? My future self dies just like that? Then I must avenge you all!”
“Oh, infinite futures of mine, lend me your strength!
....
Not the same as Overdrafting the Future, Starting in Naruto but had the premise.
Not known if harem or had romance yet.