Even after stabbing Teach's chest, Jon isn't sure if it's enough to kill this guy. After all, Teach can have 2 devil fruit abilities at once, so his body must have a big secret.
"Well, I'll just make sure you don't have any chance of survival."
Jon slashes his ninjato that stabs Teach's left chest diagonally to Teach's right hip. He imbues it with chakra blade jutsu and advanced haki. Of course, he uses advanced armament and conqueror haki to make sure his blade can cut through Teach's body.
Jon's ninjato slashes through Teach's body easily because it is not as hard as Kaido's body. Teach's body gets separated from left chest to right hip and blood flows out of the big cut. But Jon isn't done yet. He immediately slashes his ninjato horizontally to cut Teach's abdomen.
His quick and decisive attack allows him to cut Teach's body easily. Teach's lower and upper body parts get separated before anyone can even recover their shock from the previous slash. Jon never gave his enemies a chance when he doesn't want to.
But even after cutting Teach's body into 2 parts, Jon still thinks that it's not enough. So he makes some hand seals to execute a ninjutsu while the other Blackbeards are still in shock.
"Katon: Great Fire Annihilation!"
Jon spews a massive amount of incredibly hot fire at Teach's body from a close distance. The fire hits Teach's body and the ground before it spreads everywhere, hitting the other Blackbeards too because of its wide spreading range. But the attack is focused on Teach whose scream can be heard from everywhere.
'As I thought, this lunatic still has so much energy even after beinh decapitated.'
Jon makes another set of hand seals while still shooting fire. Then he stops his fire attack as he jumps quite high. He can see the effect of the Great Fire Annihilation jutsu. It's so strong that a big crater is formed with Teach at its center, still not dead.
"How persistent. Then take this!"
"Suiton: Great Exploding Water Colliding Wave!"
Jon releases a massive amount of water out of his mouth. The water quickly fills the crater before flooding the entire area, drowing all Blackbeard Pirates who can't swim because they are devil fruit users. Meanwhile, Jon is floating high in the air using his Six Path power.
The Red Yang Barrier that Jon made acts as a wall, so the water doesn't spill out of it, making the square barrier looks like a giant aquarium. Jon fills the red aquarium with tons of water that costs him massive amount of chakra. He only stops after the water reach the depths of 50 meters.
"Sigh, I can just drown every devil fruit user I fought like this if I just want to win. But that won't be fun. Alright, now let's see how you guys are doing."
Jon creates some wood clones and send them to dive underwater to check on the Blackbeards. Sometime later, the clones come out one by one, carrying the remaining executives of Blackbeard Pirates. They are on the brink of death because they couldn't breath underwater.
Only Teach is left underwater because Jon plans to just kill him. As for the other Titanic Captains, Jon is absorbing their chakra to take their devil fruit abilities. He actually wants to take Teach's devil fruit abilities too, but he can't because Teach's Darkness ability will disrupt Jon's chakra.
"Wait! Seastone!"
Jon suddenly remembers that he can just seal Teach's devil fruit ability using seastone before absorbing the devil fruits. He quickly send a clone and give it a seastone cuff to retrieve Teach's body. The clone dives quickly and teleports back to Jon with a handcuffed Teach's upper body.
When he sees Teach, Jon doesn't know whether he should be impressed or scared because this guy is still alive after being cut in half, burnt, and drown longer than the others. Well, Jon can see that Teach's life is hanging by a thread, so he needs to be quick.
Jon immediately absorbs Teach's remaining chakra and fuses it to some fruits. To make sure that there will be enough chakra, Jon's clones even uses medical jutsu to keep Teach alive until the devil fruits are reincarnated. Teach who is still conscious can only feel despair because he is already too weak to do anything.
Finally, Jon releases him after 2 devil fruits appear. But Jon's clone still heal him to make sure Teach won't die after losing his devil fruits. It's not because Jon wants to save him though. Jon just wants to make him suffer more.
"Teach, I heard that drowning is one of the most painful ways to die. I'm always curious about that, but I don't dare to do it myself. So why don't you test that for me."
Jon grins evilly before throwing Teach back into the water. Teach has been weakened so much that he can only look at Jon with eyes full of anger. But he can't even move any part of his body, so he can't swim and can only sink into the bottom of this giant aquarium.
Using his Rinnegan, Jon keeps looking at the drowning Blackbeards. He keeps checking their chakra to make sure that they are dead. But he doesn't immediately remove the water even after everyone's chakra is gone. He waits for an hour before sending the water to the sea by opening one side of the barrier.
After that, Jon gathers all their corpses, the executives and members. Then he binds them using his Wood jutsu before throwing them into the sea. He increases their weights using Earth jutsu: Added Weight Rock to make sure they'll sink into the bottom of the sea.
"Sigh, the town is destroyed. But it's better than the whole Kingdom I guess."
Jon looks at the destroyed port town and sighs again before teleporting back to Alubarna. He reports the situation to the Royal Family, making them very relieved. The port town is destroyed, but the citizens are saved, so they don't complain.
Such a result is already the best in their opinion considering the enemy is an Emperor crew. If not for Jon, then they would face the destruction of the whole Kingdom rather than just a town. Blackbeard Pirates have destroyed a lot of places, after all, so they are glad Alabasta can be saved.
Right after receiving Jon's report, the Kingdom sends people to help the saved citizens. They need to hurry because those people will need many things now. Jon decides to rest after spending a lot of energy. He eats a lot of food before taking a hot bath to relax while the others are busy handling the war aftermath.
When he soaks himself in hot water, Jon receives a report that the Marines have arrived. The Marines sent Fujitora and a few Vice Admirals because their opponents are Blackbeard Pirates. They are actually fast, considering the distance they need to travel because they come from Red Line.
But they are still too late because Jon has defeated the enemies. Still, the Marines are better than him at helping the Kingdom handling the aftermath. At least the Marines will have things to do now and won't lose their men at all.
"What should we say to them when they ask what happened there?"
Igaram asks while reading the report documents beside the bath that Jon uses.
"Just tell them the truth. No need to hide anything because it will cause some trouble for you. They already know my relationship with Vivi and they won't dare to harm Alabasta because of it. The consequences of offending me is too big for them to afford. They won't do anything unless they want to get destroyed again."
Igaram trembles slightly when he remembers the reports of Marie Goise's destruction. The man in front of him destroyed the most secure location alone, causing the Celestial Dragons to fall from their thrones and the World Government to change its structure completely, creating a new era.
After taking a bath, Jon goes to the bedroom prepared for him. He wants to sleep immediately, but Vivi visits him while carrying a bottle of wine. So he drinks with her first while talking about a few things.
"When will you return to New World?"
"Tomorrow. I left when the crew was in Ref Hair Pirates' base. There was a problem before I left that can lead to a war. Though I don't know if it would really happen considering Luffy's good relationship with the Red Hair Pirates. But anything can happen, so I need to return as soon as I recover."
"T-then let me stay with you until you leave. I-I mean, j-just sleeping together, I-I sleep you sleep, side by side. T-the-there's nothing else."
"Alright, let's just sleep."
Jon smiles before going to sleep with Vivi sleeping beside him. They really just sleep side by side without doing anything else that night.