MTL - I’m From The World Of Punishment - Chapter 7 Brothers "turned against each other"

There are Humans. There are Elves. There are Dwarves. There are Orcs. And then there are Demons, and the Demon King.In a world where warriors wield elemental fury, assassins bend shadows, and mages rewrite the laws of reality with a thought… one boy awakens the weakest and funniest ability of all.[Muscle Genesis]… the power to grow and control muscle.The f*ck? No sword aura, no magic affinity, no flashy technique, just raw, brutal power.Born in the wild slums of Arcanum Nexus, orphaned, starving, and forgotten by the system, Kairo Vale has one goal: survive long enough to rise above it all.When his chance finally comes in the form of the prestigious Nexus Academy Entrance Tournament, the world expects him to fail, just another Unranked slum bastard with a useless ability.But the thing about muscles is that… they grow.And so does his pain tolerance, and his strength, and his will to endure.Thrown into trials designed to break him, teamed with nobles who want him gone, and hunted by powers that fear what he might become, Kairo fights back the only way he knows how: one rep, one punch, one brutal threshold at a time.Because in this world, power is everything.And he’s going to build his from the ground up.If they won’t give him a place in their world, he’ll carve one with his fists.

After transcending to a new world, Ye Xuan miraculously obtained the Swallowing System.

Not only could it swallow everything (wink wink nudge nudge), it could also extract bloodlines, martial arts, godly weapons, medicinal pills, treasures…

“This (beer) is way too strong! Don’t challenge me! Do you believe that I can’t swallow your divine swords?”

- Description from Novelupdates

In the Game Invasion Era, monsters run wild across the globe. George transmigrates into this world and starts as the weakest R-class Pet Tamer in the world.But then, something unexpected happens. He discovers he has an SSS-tier talent, and the stronger his binding targets become, the stronger he gets!Bind the Goblin King, and the Goblin Boss evolves into The Abyssal Demon God!-George gains a 1,000,000x combat power boost!- Bind the Elven Priestess, and the Elven Priestess Boss grows into The Elven God-King!- George gains a 10,000,000x life enhancement!- Bind the Flame-Winged Demon, and the Infernal Lord Boss breaks through to become The Profane God!- George gains a 1,000,000,000x talent boost!Soon, George himself is stunned.“Pet Tamer? Hmm… sorry, my 'pets' are all God-level Bosses.”The world is in shock:“Are you out of your mind? You call this R-class?”Holy Goddess Queen: “Sir, please spare me. I’m willing to do anything!”The Supreme Creator God: “He’s here! He’s bringing his pets with him!”

His fiancée, whom he had never met, had just broken off their engagement. He's then betrayed by his girlfriend and schemed against by her lover.His mother's legacy awakens him. No longer content with mediocrity, he transforms into a dragon overnight.