Kakuzu was really happy today.
He has gotten a commission which has more money than 17,891.34 times the entire money he has earned throughout his life.
This path of a bounty hunter was the best decision he made in his entire life.
He started remembering his life before he chose this path.
When Waterfall village was founded, he was the strongest.
Though he didn't really want to handle any sort of politics, so he let the geezers run the village. Especially the most respected geezer who has created a forbidden jutsu of immortality. He thought of it as a nonsense.
Afterall, he had killed the 'immortal' guy, that elder's son, with his poison.
His heart probably was on the wrong side, that's why stabbing didn't immediately kill him. But the poison from the stab did under 5 more minutes of their fight.
The geezers gave him a mission to assassinate Hokage.
He was still young and naive, full of arrogance at that time.
He had made a simple plan.
He sent a letter to the Hokage, God of Shinobi, Hashirama Senju as a Samurai who a wanted duel.
For a person who gave his small village the seven tailed beast, his straightforward and naive nature was known throughout the world.
So, he had thought that in a Samurai duel of honor, he will use a dirty trick and stab him with a poisoned kunai.
A poison so dangerous that made him a lethal enemy and killed the person who had almost become the Waterfall village's kage. He was immortal, and would not die even after stabbed in the heart.
A poison which can kill an immortal can kill anyone.
He was too naive at that time.
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He and Hashirama stood on the valley of the end.
It was made by battle of Hashirama and Madara?
Ridiculous.
He wished he could say that.
But the sheer amount of chakra he was emitting was beyond reasonable.
He wasn't remotely a sensory ninja, and they had not even started fighting yet.
But it was just too big and too ridiculous!
7 tails looked like a kid in front of him!
And then, Hashirama glanced at the giant statue of Mafara with nostalgia and sadness, he said,
"I don't know the way of Samurai, but not going at full strength will be disrespectful, right?"
He had the audacity to say that!
Why did he even want to go at full strength against a small fry like him!?
He threw his poisoned kunai from the distance, and ran away.
"I am sorry! Please don't kill me!"
He had shouted as he fled.
Thankfully, Hashirama didn't give a chase.
When he returned the village and told that the mission was example, they declared him a traitor and tried to kill him.
He then realised that they were always after his life. As his existence threatened their rule.
So he killed them, and took all jutsus and especially that 'immortal' jutsu, and left the village. Started wearing a mask in case Konoha comes after him, and returned to his previous lifestyle of killing for money.
But now, with him being more or less immortal now, he became a bounty hunter.
A world-scale war had started, Hashirama was dead, and so business was booming.
He wasn't just after money, but after hearts too.
He even hyped himself up by saying that he had survived against Hashirama Senju.
Well, a lot of people did, but he was the strongest in the underworld. And most ordinary jonins.
He even spread rumours that he had actually injured Hashirama and poisoned him, which eventually took the God of Shinobi's life.
And that he barely managed to survive.
To make sure that he hypes himself up, while making sure that nobody thinks that he actually has a chance against someone that strong.
Still, he didn't choose any bounty hunting mission of a Konoha ninja. Just to be safe.
But now that this is the reward, he will get the head of even the Hokage of Konoha!
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Kakuzu stared at the three people hidden behind a curtain.
And then looked at the down-payment. 30% of the reward, all in 24 karat pure gold. Meaning inflation will not affect it much. With the very expensive scrolls which doesn't adds weight of the thing stored.
These scrolls alone are a big fortune.
BUT...
But he stared at the target's sketch.
He just said that in his head in excitement, but he wouldn't actually go after Third Hokage!
He realised that these are just some absurdly rich idiots.
He might as well offer their head to Third Hokage to get a reward and apologis for throwing a kunai at First Hokage.
"It will be done."
"Good! Just come to this vacation island when the mission is done. Do it within 3 months. And take as many rogue ninjas with you from the black market."
He collected his dowpayment, carefully making sure that each block is 1kg, and calculating the amount in his head.
He mentally scoffed. They are really rich retards.
The gold doesn't cover the money in Fire Ryo.
1 Fire Ryo = 0.5 Earth Ryo = 0.02 Wind Ryo = 0.02 Water Ryo.
And everything is very cheap in Land of Fire in comparison to other countries. 1 Fire Ryo will feed a person one meal in Land of Fire, but the other country will take a much more expensive currency's multiple Ryos for the same.
These guys' accountants must have embezzled a lot of money by now by how gullible they are.
The 30% down-payment is already 10.4 times more than the full payment.
"Payment is accurate. Can I get the contact info of your accountants?"
They must have a lot of embezzeled money.
The three people behind the curtains said, "No."
Well, it's really bad that he doesn't have any jutsu to see memories of others.
Well, these three people are probably just body doubles.
There are around 40 ninjas. One of them is a rogue ninja who he has been searching for a long time. He will finally obtain a Wind style heart.
And judging by the peepholes, and the louder noise that is coming from there, they are probably the masterminds.
In a swift motion, before anyone could react, he used Earth style to level the entire farmhouse, kill the fodder ninjas, and directly headed to the three masterminds...
No. 3 Idiots.
They are-
Just people? He doesn't know them. He only knows ninjas on bounty book.
"What are you doing!? Do you know who we are!? We are-"
He killed the three, while making sure that their heads are intact.
If the underworld can extract memories from the dead, Konoha definitely can.
And even if they can't, Konoha is the biggest ninja village. They will be able to find out who these 3 Idiots are.
Still, he will just sent a Shadow Clone with transformation jutsu to deliver it and hope for a reward.
If they give him money, good.
He should always be optimistic about money.
If they don't give him money, what's the worse that can happen?
It's not like these 3 Idiots are Daimyo or something.
Before going, he took out the Wind release rogue ninja's heart. That guy was talented in in ninjutsu, but absymall in other areas. He will probably be a genin with chunin level wind ninjutsu.
It's not much, but his set of 5 elements is finally complete. After mastering some ninjutsus of this element, he will hunt for stronger wind ninja with stronger heart.
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----- It's my headcanon, but in this story, here is the explanation of why Hashirama appears in his battle wear as Edo Tensei.
He knew he will die soon, so he accepted the stranger 'Samurai's' duel request, and wanted to use the last amount of chakra he could use while having the Chakra illness(severe) debuff, and die in the same place where he killed Madara.
Sadly, after instinctively dodging the OP Kunai of Kakuzu that killed an immortal, he succumbed to his illness.
If Kakuzu had fought Hashirama seriously, in one or two moves, Hashirama would have fallen dead automatically and he would have been able to stab Hashirama.
Kakuzu was this close to killing the legendary God of Shinobi and becoming the new God of Shonobi/Samurai that he was posing as.