In Masa's mind, there were four ways to develop the Neko Neko no Mi Model: Leopard.

  The first was awakening, which focused on developing his physical ability, recovery, stamina, endurance, and everything to the limit. It was like the jailers on Impel Down who felt nothing and quickly stood up even if they were beaten by Luffy and his group on the Impel Down arc. While they had lost their minds, they were like immortals and would tio stand up even if they were beaten down siheir recovery allowed them to do all of that.

  The sed was tthen a certain special trait of a leopard, such as cws, speed, a leap, hunting ability, and many others.

  The third way was tthen the aspect of trol, which allowed him to trol all leopards.

  The fourth way, the st, was by evolving into the aral creatures within the line of leopards, which was reted to feline creatures.

  Among all of those ways, Masa has achieved most of them, except in the first and fourth ways.

  The first might be strange, but as there were four Masa, his potential also grew four times stronger, and he khat he hadn't hit his limit of potential, so he khat he could still bee stronger as long as he trained harder.

  However, it would take a long time for him to hit that potential since he wasn't a protagonist who would quickly grow stronger so suddenly and instantly prehend all the plicated things as long as they fought a strong oppo.

  Unlike such a protagonist, Masa o train daily, learning knowledge day by day tinuously until he grew into the way he was.

  Masa couldn't be like Issei, who could bee the stro creature in the DxD Universe in a year, Luffy, who could bee the king of pirates in two years, or Tatsuya, who became the stro being the moment he was born.

  For Masa, everything needed a process, and while he could bee four times faster, he believed that as long as he faced those protagonists, their strength would increase dramatically, almost instantly, like a rocket.

  So, the best way for him to make the Neko Neko no Mi Model: Leopard was by using the fourth method, which was evolution.

  Fortunately, this was the world of DxD where all the supernatural beied, so at that moment, he didn't hesitate and tried to evolve this Devil Fruit into a Manticore type.

  "Gnh!"

  There was ion; everything was smooth, as he had thought, but the process ainful!

  The weak, normal Zoan-type Devil Fruit turned into a mythical Zoan type, Neko Neko no Mi, Model: Manticore.

  Naturally, due to Manticore being a feliype of creature, it was easy for him to rea "awakening," or rather, it was so natural of him since, as a House of Vapu devil, his innate ability to trol all types of a feline creature was the best of the best, and that was why he was gd that he had chosen this Devil Fruit.

  Still, he had to say, the differeween a manticore and a leopard was huge!

  'Moreover, this power!'

  Uhe leopard, the manticore had various abilities, including fire breathing, a scorpion tail, toxin manipution, and even wings.

  However, this transformation was so painful!

  At the same time, Masa was gd that he did all of this in his new boratory since he didn't want to make anyone worried. Rubbing his temple, he took a deep breath and decided to eat to recover his stamina.

  "This is troublesome..."

  Masa realized that as he grew stronger, his energy ption also increased.

  Probably, iure, he might also be like Luffy, who o eat so much that his belly would grow so huge, like a pregnant woman. While he could e all of that quickly by using Seimei Kikan, or life return, it was expensive, and if possible, he wao gain energy in a different way.

  "Let's think about that ter."

  What was important was to grow stronger first, and while his ption was high, it was still within his tolerance, especially when he didn't ck money, and the food industry in his domain was also extremely advanced.

  In the Underworld, he probably trolled almost half of the food supply.

  Yes, food might not give him a lot of money, but it could give him a lot of power as food was a y for everyone.

  heless, what was important was still power, and because of that, he took all of the myth species of his lioures, including the Nemean Lion, which had been turned intulus Nemea, which had been tamed by Saira.

  Yes, even though the Nemean Lion had long died, and its body had been turned intulus Nemea, its DNA could still be obtained as a Sacred Gear was an item created based on the bination of the body of the respective myth beings chosen by god.

  In other words, even if Regulus Nemea had formed into a certain item, as long as Masa picked this part of an item, it was simir to its DNA.

  Naturally, as this wasn't a plete DNA, Masa o pehis DNA with something else since, unlike manticore, sphinx, shisa, and many other mythical lions that existed within his domain, the difficulty was eveer, but fortunately, the Demoniergy had a limitless possibility.

  Yes, while the amount of Demoniergy had beeermined from birth, there were many things that one could do with it, including to help him with this transformation.

  Moreover, along with Vepapunk's knowledge of biology and medies gained in the world of One Piece, Masa decided to go all out.

  Still, how did he gain the DNA of the Nemean Lion, who had turned intulus Nemean?

  Masa might have fotten to expin this before, but after he helped Saira's mother, Mis Bael, wake up, he asked for Saira to give him part of the Regulus Nemean, which Sairareed to.

  Naturally, Regulus had no way to refuse, especially si was a feliype of creature.

  At the same time, while it might not be reted, if Regulus hadn't met Saira first, it might have goer Masa, it thought, but that was the problem of the past, and Masa didn't care much about this lioher, as it had bee a Longinus.

  Still, let's talk about that problem ter.

  "Let's do it."

  Masa made up his mind and transformed his Devil Fruit into a Nemean Lion.

  "Ghn!"

  He grounded his teeth, and as expected, it was so painful!

  Probably because the Nemean Lion was famous for its imperability, which made it impervious to all ons, making it nearly invincible that his skin and body transformed, peeled grotesquely, trying to transform his body to have a simir ability!

  Yet, he khat he had to bear everything, and supported the healing process by using his Demoniergy, life force, and many others until finally—

  "...success."

  Masa could feel his defense had increased dramatically, and if he had added an Armament Haki, nothing could have passed through his defense!

  Probably, in this world, he was a creature with the highest defense.

  If he used the ability of the Ton Ton no Mi and made his body dehen there was no doubt that no one could pass his defense anymore, no matter what method they used, except they had a way to bypass his defense, such as the Power of Destru, which practically the power of a cept.

  Yet, there was no doubt that he was happy, but even so, he khat he couldn't be arrogant, especially when pying defense wouldn't bring him to victory, after all.

  More importantly, even the Nemean Lion with the highest defense could die, so Masa khat even if he had the highest defense in the world, he wasn't invincible, but before that—

  "Masa, you are doh your training, right?"

  As the door was knocked, a cute figure was looking at his training room curiously before she fell into a panic. "Ah, Masa, what's happening!?"

  "R-Ravel... get me something to eat first."

  Yup, like Masa of Mahouka, Masa of DxD had a childhood friend, a's talk about that ter since he was so hungry!