Natsu would flashed Rouge a battle crazed grin and flashed in front of the demon girl. "Shit!" The demon girl cursed and crossed her arms blocking a strong punch that sent her flying along with a shockwave.

The demon girl would landed on her feet and blocked multiple ki blasts while sensing that Natsu was closing in and counter with wave of hellfire, pushing the dragon turtle hybrid back a bit. "Hellfire...not bad." Natsu said, blocking the intense flame, scratches forming on her arms before pushing through and had grabbed the demon girl by one of her horns. "Easy on the horns!" Rouge yelled at this and slammed her fist on the hybrid's jaw before being surprised that her punch didn't do nothing. "Come now, I know you can do better than that, Rouge." The dragon turtle said before slamming her knee into the demon girl's stomach, forcing to cough out spit before being thrown into a mountain.

The demon girl would let out a small painful grunt and pulled herself out of the mountain, growling lightly before grabbing the mountain she had crashed into and throw over at Natsu who destroyed it with a single punch with a smirk at seeing the demon girl in front of her before both clashed their fists, sending a powerful shockwave the entire continent.

Natsu would let out a small giggle while having her fist engulf in chakra and swing for another punch that would be counter by Rouge's knee who would winced slightly at the pain but would smirk a bit before using her other leg to kick Natsu's side, surprising the dragon turtle hybrid by the sudden increase in strength from the kick. "(Hm? Why a sudden increase?)" She thought before blocking a punch by the demon girl as her tail would wrapped around her leg and slammed her into the ground,  crater forming under her that grow twice in size when Rouge would rolled out of the way of a stomp and uppercutted the dragon turtle hybrid then blasted her with a Hellfire roar, sending the taller female through multiple mountains.

The demon girl blocked multiple blasts of magic coming from where her opponent was, growling lightly before blitzing towards tanking through the blasts while her fist be engulfed in hellfire but would be hit by the hybrid's feet after she gotten close enough. "(Alright, I have took enough damage that should be a boost)" The demon girl thought, wiping the blood off her nose before firing a powerful blast of demon ki that would be counter by a magic blast before both females smashed their fist against each other, causing another shockwave across the continent, destroying a few parts of it. "So you can grow stronger from the damage you take huh?" Natsu asked the demon girl who answer with a smirk with the hybrid smirking growing before both jump back and fired a powerful burst of fire that triggered a heavy explosion, complete destroying the continent they were on. "Oops." Rouge said at this, rubbing her hair, not planning for that to happen before blocking multiple blows coming from the hybrid and pushed her back with a kiai and would be shocked to find herself being dragged across the sea by the hybrid. "Let's see where the nearest land is." The dragon turtle would say, looking around and spot an island before flying up and slammed the demon girl on the ground, causing a burst of shockwaves that blow ground and trees away.

Rouge would growl loudly from this with the hybrid's smirking turning into a smile before jumping out of the crater from intense burst of hellfire. Natsu watched the demon girl hovering out of the crater, covering an hellfire aura before blitzing forward, destroying everything behind her before swing a powerful punch that Natsu countered with magic engulfed fist, destroying the planet they were on along with a few parts of the universe. "That's it. Break the worlds as we fight." The hybrid would say in excitement before hearing the demon girl roaring demonically and caught both her fists while staring down at the demon girl.

Rouge would open her mouth, firing a massive hellfire roar that Natsu dodge, destroying a few planets before dragon turtle hybrid would flow over and slammed her knee into Rouge's cheek, drawing blood out of her mouth before she would crashed into a planet, shifting it off orbit. "You done, Rouge?" The dragon turtle hybrid ask with a smirk before her eyes would widen a bit and would look behind herself.