I am grinding experience in another world

A flash of black light appeared before his eyes, and a figure clad in grey materialized. Gongsun Sheng? I'm saved! His strength drained from him, and Li Buxian collapsed into the scattered incense ash on the ground. ... As the last ray of light vanished on the horizon, in the pitch darkness, Chen Mu glanced at Li Buxian, collapsed on the ground, and expressionlessly turned to face Yuan Xian. Now, the other's face bore only a large mouth full of sharp teeth. His nostrils, eyes, and other features had fused into a smooth expanse of flesh. Yet, it seemed as if he still possessed a line of sight, his face turned toward Chen Mu, staring intently at him. "So, it's you who wants to snatch the God Statue," Chen Mu said coldly. He had been busy all day, capturing all the Lock Dragon Knights and bringing them to Thousand Lanterns City, planting the Heavenly Demon Spirit Seeds, and interrogating each one. He had thought they were thieves in disguise, but it turned out these black-robed Lock Dragon Knights were indeed from the Lock Dragon Courtyard. They raised the Pulse Points toward the ground surface strictly under the commands of Yuan Xian, the twenty-ninth Institute Head. They claimed they needed to move the God Statue to Southern Shu to suppress with a powerful City God the territory they had just seized. Nonsense! If that were true, why would they act so covertly now? The moment Chen Mu reached this conclusion, he returned to Qiluo Mountain and then saw Yuan Xian attempting to kill Li Buxian. He looked gravely at Yuan Xian, who resembled a demonic creature, "Is this what becomes of the Underworld God Transformation at the end?" "Who would end up like this through normal cultivation? He had a mishap during his practice, suffered a Divine Demon backlash, partly turned into a Strange Demon, and that's why he looks like a ghost now," Li Buxian retorted from the ground, his face full of schadenfreude. Strange Demon? Chen Mu was taken aback. He truly hadn't expected that Strange Demons were the result of possessed Underworld God Transformation Warriors going awry! Chen Mu looked up at Yuan Xian only to discover that his figure had become half-transparent in this short time. He faced Chen Mu, mouthed a silent laugh, and then suddenly disappeared from their sight. The next moment. Buzz! The air above Qiluo Mountain trembled violently, and a thick fog suddenly enveloped the forest. Hee hee hee... A series of sharp, piercing laughter suddenly erupted, instantly spreading across Qiluo Mountain. Li Buxian's face changed, and ignoring his numerous broken bones, he scrambled to his feet, "We must go, if we spill the beans to the Lock Dragon Courtyard about this guy's possession by a Strange Demon, he's done for!" Leave? I damn well want to leave. But what if I do and the City God Statue gets destroyed? Chen Mu couldn't help but clench his teeth. Just as he was about to inquire more about Yuan Xian, an invisible Exotic Force abruptly struck him. Yang Judge Bone Shield and Body Protection Aura appeared before him in an instant. But in the blink of an eye, the Bone Shield shattered with a bang, and the globe-like Body Protection Aura rapidly caved inward, holding for only a breath before bursting into a sky full of flickering lights and vanishing. Chen Mu's face turned pale. Five Dragon Dharma Body! Before the invisible force could touch his body, black smoke, as if alive, timely shielded his chest. Bang! Chen Mu felt a powerful force hit his chest, and like a baseball, he was struck high into the sky. He burst through the dense fog, creating a large hole. Before he could right himself, Bang, bang, bang... A series of invisible attacks followed one after another; he was tossed about like a ragdoll mid-air. Had it not been for the Five Dragons Qi protecting him, he would have been completely pulverized by now. What the hell kind of attack was this, so secretly powerful?! Back in the Netherworld, he had fought Strange Demons more than once. Aside from that fox-faced scholar, Li Wuyou, he had never encountered any Strange Demon with such bizarre abilities. "I need to find this bastard first!" Determined, his mana surged as he fully unleashed the Truthful Listening Technique. Then he realized that the fog covering Qiluo Mountain seemed alive in its own right, with life rhythm everywhere, but Yuan Xian was nowhere to be found. Even in the instant he was attacked, there was no trace of the other. "How is this happening? Why can't I see anything?" Chen Mu, disoriented, immediately shouted in Li Buxian's direction. "That's from the Nine Serenities Abyss's Spirit Void Cave Heaven!" Li Buxian didn't hesitate and quickly explained loudly in the direction of the sounds of battle coming from the fog. "The perfect completion of the Underworld God Twelve Transformations allows the unity of the twelve Divine Demon aspects, culminating in the Celestial Capital Transformation. Once one achieves the Celestial Capital Transformation, they can hide within the Spirit Void Cave Heaven, invisible to outsiders." "Yuan Xian failed to progress his Underworld God Twelve Transformations, but he can evidently also hide within the Spirit Void Cave Heaven." "Outsiders can neither enter nor see inside; we can't attack him at all. Let's run!" While explaining, Li Buxian hadn't forgotten to urge Chen Mu to flee. "He just wants the City God Statue, why not just give it to him, life is more important!" Give him the City God Statue? Wouldn't that mean entrusting my life and safety to Yuan Xian?! "Don't be so pessimistic, or I'll kill you myself!" Spirit Void Cave Heaven? Nine Serenities Abyss? As a living person, indeed I cannot see it, but surely the Yin Spirits must have noticed something? Chen Mu's expression immediately turned fierce. Five Dragon Dharma Body! Roar! Five ferocious dragon heads suddenly emerged around him, then immediately began flying up and down in a whirl, tightly guarding him in the center. Yin Wind Escape! A gray gust of energy swirled around him, and in an instant his body shot up, piercing through the fog and soaring towards the sky. Once he broke out of the range of the fog and temporarily escaped from Yuan Xian's invisible attacks, Chen Mu's figure transformed in the blink of an eye into a bald young man. He wore body-fitting black garments, with a fiery red floral mark on his forehead, and his pitch-black eyes flickered with a cold light, appearing bewitchingly extraordinary! In an instant, he had switched into the Heavenly Demon Body within the Divine Statue Cave Heaven using Netherworld Ferry. Then, looking down, Chen Mu immediately noticed that the scene atop Qiluo Mountain had dramatically changed. A thick fog that could not be dispersed revealed an alternating world of gray and white. It was like a poor signal on a video screen, intermittently displaying snowflake patterns and superimposed upon Qiluo Mountain, constantly interweaving and showing through. At this moment, a creature about three meters tall, with its hands transformed into horny claws and its bald head and face leaving only a mouth full of sharp teeth, was staring intently at Chen Mu from the edge of the gray and white world, with a predatory gaze. Yuan Xian? I see you now! Chen Mu's gaze sharpened, seizing the moment the gray and white world appeared, he plunged down with all his might. His vision blurred for a moment, and Qiluo Mountain had vanished, replaced by a gray and white grassland. Numerous long-leaved grasses swayed in the wind, resembling 3D black and white animation. Is this Spirit Void Cave Heaven? Roar! Before Chen Mu could take a closer look, a furious roar exploded beside his ears, and Yuan Xian, now fully covered in dense scales, suddenly approached. His fingers, transformed into horny claws, lashed out fiercely towards the side of Chen Mu's neck. Clang! The horny claws struck the smoky blackness created by the Five Dragon Dharma Body, producing a sound like clashing metal. Chen Mu flipped his body, using the opponent's attack to leap out dozens of meters away instantly. He squatted slightly, with narrowed eyes staring at Yuan Xian. Before, when you hid inside the Spirit Void Cave Heaven, I had no way to retaliate, but now... Dharma Aspect Possession! The five dragon heads roared behind him, instantly transforming into a silvery black mist that merged into Chen Mu's body, a dark shimmering film appearing on his surface. Chen Mu took a deep breath, his hands coming together as if shaping a blade, Heavenly Gang Ten Directions! His figure vanished abruptly, and when he reappeared, he was already more than ten meters behind Yuan Xian. Pfft! Yuan Xian's right hand suddenly disappeared, and deep gray blood gushed out in the gray and white world. Chen Mu nonchalantly tossed away the scaly strange hand as if he had teleported, once again closing in on Yuan Xian. His hands moved as swiftly as a bee's wings, continually jabbing and slashing around the three-meter-tall Yuan Xian. It was as if the scene where Chen Mu had been attacked before was playing again. Yuan Xian was instantly staggered and thrown into disarray by these strikes as swift as lightning. Puff puff puff... The finely detailed scales covering his body scattered in all directions, and in just a few breaths, his whole body was covered with dense, numerous wounds. Blood splattered, and the ground and the gray and white grass were stained dark gray. Pfft! The next moment, Yuan Xian's left shin seemed to be sliced by a sharp blade, and abruptly broke off. He could no longer sustain himself and fell to the ground with a thud. His body convulsed continuously, trying to rise several times but failing to do so. Chen Mu's figure appeared ten meters away, watching Yuan Xian with an indifferent face. "Dare to steal the God Statue?" "Ha! Even if you transform into a Strange Demon and burrow into Spirit Void Cave Heaven, I can still chase you down and kill you!"