when hokage was organising the meeting about itachi , ken had already set off for killing the members of akatsuki after planning a little alone inside his room . with 10 tails inside him ken had practically infinite energy source so he wasn't even a bit exhausted after precious set of events .
ken was fortunate because akatsuki members usually travelled in a pair to ensure the fast sauces rate of mission which saved his much time . first targets were sasori and deidara who were resting inside small forest at country of lightning. ken just arrived there instantly with his flying raijin jutsu and immediately used his time stop domain .
the both idiots were frozen in time instantly and were obliterated completely after a few seconds with Ken's crimson fire. ken especially didnt like the maniac taste of sasori whose mind was insane to actually turn himself into a living human puppet .
after the two were gone ken immediately teleported to a small village near the border of country of fire and sand . here , hidan and kakuzu were inside some kind of shady place which was actually a hidden centre to collect bounties. of course ken didnt have anything to do with the centre . in fact he actually hated these people who had bad taste to preserve human bodies for scum purposes which ken didnt have any idea about . but ken was sure that their purpose was definitely not a noble one like on earth for organ donation etc so ken simply locked the whole two story building in a solid space lock and crushed it .
everything including hidan and kakuzu was crushed completely under the huge space compression pressure so they couldn't survive even if they were done kind of immortal shit . ken had compressed everything into to a small ball of space on his hand so everything was destroyed at cellular levels leaving nothing behind .
like this the scum were removed easily and ken teleported inside the tower in the rain village where pain lived . he had teleported directly inside the secret room where nagato was in looking like a sickle with his thin body together with konan .
- konan , prepare for battle ! the enemy this time is really strong !
- nagato ..sigh .. I know ! this pressure is even huge compared to hanzo..
- hey ! dont start talking dangerous things while ignoring my presence. haha.. dont worry I wont kill a fellow uzumaki. I'm just here to kill some black bug and have a peaceful talk with you nagato ..
- what is there to talk...* time frozen *
- ahem ! this is one of my ability time stop domain. dont worry , I have deliberately allowed both your and konan's consciousness free of the binds to show you something important ...
suddenly adamantine chains came out from Ken's body in shiny golden clour . the 5 snake like chains stabbed simultaneously into the ground there was nothing but after a second everybody saw a completely black hazy figure wrapped in the chains struggling..
- what are you ?
- ahem ! I'm here to stop you from reving kaguya , black zetsu ! hehe.. I dont have any enimity with you but sorry I cannot allow someone that powerful and completely twisted to become free again ...
- how do you know about mother ? hehe... you cannot kill me anyway as I'm mother's will ..
- oh ? * Rinnegan * now still you think so ?
- rinnegan! but how ? only madara was able to awaken that * scared *
- well now your job is done as I wanted nagato to learn some truth about his rinnegan from your mouth. now you can rest easy hehe..
then ken forcefully started erasing the consciousness of black zetsu with his own pure soul power . black zetsu screamed for more than twenty minutes but was gone after the will dispated. he was just a fragment of kaguy's will so this was one of the few ways to kill him for good and the most brutal. that is why ken chose this method solely..
- ding! main mission complete!
reward - world travel function is now available! host can choose to travel in another universe of his choice!
hehe... honestly I was still not completely convinced that black zetsu was gone for good but system's voice came at the right time ..