"DIE, IIN!!!!"

  Machvise, who had escaped from the ruin, jumped high into the sky before he fell to the ground and decimated everything!

  BOOOOOOOOOOOOOOOOOOOOOOOMMMMMMMMMM!!!!!!

  A powerful force spread in every dire, caused ahquake in the area, and, at the same time, turhose people into mi.

  Yet, even so, no oated and tio attack Machvise, trying to kill him, attag all the fragile parts of his body even if the price was their lives!

  At the same time, many also itted suicide by exploding themselves oer another!

  "FUCK!!!"

  Machvise was pletely panicked when many people kept exploding in his dire, causing so many wounds and injuries on his body. Yes, while he might be a cadre on the "Donquixote Pirate," he didn't master a "Haki." Still, his pride didn't allow him to run away si would tarnish the name of his young master, and more importantly, he wasn't weak enough to be defeated by a group of trash!

  "DIE, IIN!"

  Using his Devil Fruit, Machvise tried to punch everyone in the surroundings, causing those people to be decimated as their entire bodies broke.

  Ton Ton no Mi.

  This was the Devil Fruit, which he had eaten and allowed him to drastically increase his own body weight, leveled by metris.

  There was no doubt that it owerful Devil Fruit since his punch had bee so powerful that it was enough to kill someoh just one punch; at least if he faced a group of small fries, he would be ued.

  At the same time, as long as one of them died, and they saw his incredible might, based on his experiehey would be panicked, and by then, he could start his revenge by a massacre!

  Yet, uedly—

  BOOOOOM!!!

  His head was hit by a on, causing him to be stunned for a moment, and naturally, those who were affected by the explosion died, but the others opped a attag Macvise, and some of them stabbed their ko one of the Machvise's eyes.

  Stab!

  "AAAAAAHHHHHHHHHHHHHHH!!!!"

  The moment the sharp kabbed into one of his eyes, causing him to be in so much pain that he woke up after being hit by a on, he quickly turned his head to avoid atack who tried to aim for his eyes.

  Still, Machvise quickly woke up and screamed painfully before trying his best to run away!

  "GET THE HELL OUT OF ME, II GO, IIN!"

  Machvise had decided to run away since he felt that those mobs were crazy!

  They weren't normal!

  What was wrong with them?!

  His head was all bloody, and his body was covered in injuries that no part of his body wasn't red.

  However, wheried to escape by ging his weight to zero, everyone grabbed him together, trying to pull him down so he couldn't escape!

  "LET GO, IIN!"

  As he moved his hands, increasing the weight to cause a powerful force that blew everything, which made him ready to escape, only a fist suddenly grabbed his belly, digging deeply into his flesh!

  "IT HURTS, IIN!"

  His mind was crazy, and Machvise was desperate to ply, but at the same time, he realized that this person was different from others!

  When he looked down, he saw a small hole in the ground, which was only enough for a fist to e out, and at the same time—

  "Zipper?"

  Yet, before Machvise uood everything, Masa directly used an all-out attack!

  "Jake Jake Curtain!"

  A jacket-like curtain covered Machvise from above and surrounded him along with a few people before they suddenly vanished.

  "Huh, where is he?"

  "I am not sure..."

  "But... what is happening?"

  When everyone was fused, Machvise never vanished, and he was still in the same location. The only difference was that he was covered in a gigantic jacket that reflected himself and his surroundings like a mirror, which made people think that he had disappeared even though he was in the same position. Moreover, as it was at night, it had made it even harder for people to see what was happening.

  Naturally, if someone had an "Observation Haki," then they would notice what had happened, but fortunately, those who could use it weren't present.

  Yet, Machvise quickly realized that he was being targeted by a Devil Fruit user!

  Still, knowing all of this, instead of getting scared, he became ceous and angry that someone would dare attack him!

  "It must be you, iin! How dare you attack the great me, iin?! Don't you know my identity, iin?! I am the great pirate uhe Young Master, Donquixote Dofmingo! If you kill me, then be prepared for my Young Master's revenge! My Young Master will definitely kill you!"

  Usually, as soon as people hear the name Dofmingo, they are frightened aate in their as.

  Machvise thought that this coward, who could only hide among the crowd, was the same, thinking that this guy would definitely be scared and stop attag him!

  Though he had to say, Masa's hand was quite weird as it was long, and instead of flesh, it was like a zipper, which fused Machvise. At the same time, he tried to see Masa's face since, by then, he could start his revenge and ask his Young Master and others to help him get revenge!

  "If you know, then hurry up and stop attag me, iin! And stop all of them for me, iin!"

  As Masa didn't say anything, Machvise thought that he had won, but unfortunately, it was just because Masa was too zy to say anything to Machvise.

  "Jake Jake Iron Maiden."

  All of a sudden, the curtain that covered them suddenly turned into thousands of sharp spikes that stabbed Machvise at the same time!"

  "Guwah!"

  Machvise's entire body, from head to toe, ierced by the sharp spikes created by the jacket curtain.

  If it was just a normal jacket, it would be impossible to pierce Machvise's thick body.

  However, Masa's jacket had the sharpness of a bde, and at the same time, while he didn't know a "Haki," he kouki," a special ability from the world of DxD.

  Yes, due to Masa from the world of DxD's good retionship with Saira, he learhe Touki from Saira.

  So, what was the use of a "Touki"?

  Frankly, it was quite simir to Haki in the world of One Piece, which allowed the user to increase his offense, defense, and speed by shrouding themselves in an aura of Ki.

  Moreover, the "Touki" could be eled into a on or ability, and this is what he did, using "Touki" to cover his jacket's ability, which made it sharper and more powerful!

  "You...!"

  Machvise was in disbelief as he had never expected someoo dare to attack him even after he told that person he was someone under Dofmingo, but as the curtain jacket, which made many sharp spikes, started to him like a dumpling, he could only succumb in despair.

  "Young Master..."

  Machvise was about to die, but he ulled to the ground by Masa to a safe pce, somewhere hidden, before all of the people that he had trolled caused more chaos, destroying this vile pce from the earth!

  Still, Masa didn't move too far away since he was afraid that Machvise would die.

  If Machvise died, then the Devil Fruit inside his body would be reinated somewhere, and that wouldn't be good!

  So, after Masa got into a good pce, he came directly out of the human jacket that he wore to hide his identity, then uned Machvise, who was on the verge of dying but had lost sciousness due to blood loss and injuries.

  However, Masa had to say that this battle was easier than he had imagined, but he knew well that it was all due to the Masa from the DxD and Mahouka.

  Masa from the DxD gave him a powerful physical ability, which had been trained from childhood, and Masa from the Mahouka gave him an almost instaion that made his enemy a swift defeat without being hurt from the fight.

  Still, enough of that since he khat it was time for him to do an experiment on the ability of his Jake Jake no Mi.

  Machvise.

  While Masa didn't expect he would meet this guy in this pce, he khat he was in luck, especially when Machvise's Devil Fruit was quite good, but unfortunately, Machvise was trash.

  Weight = Mass x Gravity.

  Iure, he might even manipute gravity if he mastered this Devil Fruit, and at the same time, ohe weight increased to the limit, it was even possible to open a bck hole!

  See?

  However, just by using this ability by increasing his punch by oon's might, he could simply defeat anyone, especially in the world of Mahouka, where everyone's physical ability was just about the same as each other.

  Knowing all of that, why should he hesitate?

  So, a zipper appeared oop of his head, and his body was wide open; then, it devoured Machvise without mercy, especially when this guy irate.

  Machvise seemed to awake, but he only saw an endless darkness, which made him panic. At the same time, he appeared to realize what was happening and woke up, but it was too te!

  Still, as Machvise was already inside his body, Masa made his attack, and this time, he simply killed Machvise inside his body.

  Then, after a moment, his eyes shoh a brilliant light as he puhe ground with all of his might!

  BOOOOOOOOOOOOOOOOOOOOOOOOOOOMMMMMMMM!!!!!

  The ground gouged out, cracked, and shook violently like ahquake had happened.

  Yet, in front of such a disaster-like situation, Masa was full of happiness; why?

  Ton Ton on Mi was devoured by him!

  ---

  It isn't a bad Devil Fruit, right?

  Simple and powerful.

  Still, if you have an idea of how to develop this Devil Fruit, don't shy away from writing ents.