"Qingyin!" Xu Chen asked, "How do we cultivate in this ancient demonic realm?"

"Xu Chen, that's exactly the problem I'm struggling with. Our previous chaotic power is useless here. We can only cultivate divine power or demonic power according to the methods here. Most people in the demonic realm cultivate demonic power, including me... The only way to cultivate is by comprehending the Demon-Annihilating Crystals and some ancient artifacts. Currently, I'm in the process of comprehending a few pieces of Demon-Annihilating Crystals," Qingyin explained.

Qingyin took out two precious jade pieces and handed them to Xu Chen. "These are a low-grade and a middle-grade Divine Jade. Start comprehending them gradually," she said.

"Okay!" Xu Chen received the Divine Jade.

"By the way, Xu Chen, let me explain the power levels in demonic cultivation. From weak to strong, they are: Lesser Demon, Augmented Demon, Greater Demon, Demon King, Devil Emperor, Demon Lord, Demon God, and Demon Sovereign. Of course, Devil Emperor and Demon God are terrifying beings that reside in the lower realms, which do not exist in our underground demonic realm!"

"Underground demonic realm?"

"Yes, Xu Chen, this ancient demonic realm is not a flat continent, but a colossal world beneath the mortal realm. It has a total of eighteen immense layers! Each layer is inconceivably enormous. The deeper you go, the more fearsome creatures dwell there. However, I have yet to descend to the second layer," Qingyin explained.

"I see... So, Qingyin, what is your current level of power?"

"As for me, I can be considered as having initially reached the Devil Emperor level. Although those three Devil Kings possess the power of a Demon King, being natural demon beings, they have robust bodies and numerous techniques. If we were to truly fight, they would be stronger than me!" Qingyin explained.

"And what about me? What is my current level of power?"

Qingyin replied, "You are considered as the reincarnation of the King of the Underworld, so you are not on the same level as ordinary mortals. Mortals are on the same level as Lesser Demons. As for you, you were born with the strength of a celestial being!"

"A celestial being?"

"Because you have not cultivated demonic power yet, it seems that your constitution is more aligned with cultivating divine power, or the Way of Heaven. Corresponding to mortals (Lesser Demons), we have celestial beings (Augmented Demons), celestial generals (Greater Demons), celestial kings (Demon Kings), heavenly monarchs (Devil Emperors), celestial sages (Demon Lords), heavenly gods (Demon Gods), and celestial emperors (Devil Emperors). You can be considered as a celestial being, or in other words, at the level of an Augmented Demon," Qingyin explained.

"I see..." Xu Chen listened attentively while playing with the two pieces of jade in his hand, sensing the fluctuations of the Way of Heaven within them.

"Qingyin, I have comprehended them!" Xu Chen said.

"Huh?" Qingyin was stunned. "What did you say? Stop joking around and focus on cultivating! If you continue being mischievous, I'll spank you!"

"No, Qingyin, I have indeed comprehended both of the Divine Jades you gave me! They are actually quite simple. As soon as I touched them, I understood all the principles contained within," Xu Chen explained.

"What?!" Qingyin was astonished, looking at Xu Chen with an expression of disbelief. "Your power, while we were talking just now, has unexpectedly... unexpectedly broken through to the level of a celestial general!"

"Really? I just feel like my strength has increased a little..." Xu Chen said.

"A little? You're downplaying it! Do you know? Comprehending a Divine Jade usually takes several years, or even hundreds or thousands of years. It is said that some prodigies in the celestial realm can comprehend a primary-level Divine Jade in one month. But... to comprehend two pieces in such a short time like you did, that's... that's impossible?!" Qingyin's voice trembled.

"I don't know... But it's really simple! It seems that the Way of Heaven, which is another interpretation of the source of the heart, is deeply understood in my heart. Therefore, comprehending the Way of Heaven is just a matter of logical progression for me! It's really that simple, Qingyin. Do you have any more Divine Jades? Let me comprehend them!" Xu Chen requested.

"I don't have any more! Because I don't cultivate the Way of Heaven and don't deliberately collect them. However, I do have these Demon-Annihilating Crystals and demonic artifacts. Take a look and see if you can comprehend them!" Qingyin revealed all her possessions.

Xu Chen held them in his hand for a while and furrowed his eyebrows. "No, Qingyin, even with these basic ones, I can't even feel any fluctuations, let alone comprehend them!"

"What? That's so poor? When I acquired these lowest-level Demon-Annihilating Crystals, I immediately felt their intense fluctuations. It took me a week to comprehend them successfully. But you're saying you can't feel anything at all? It seems that you simply cannot cultivate in the demonic arts!" Qingyin said. "Even creatures with poor aptitude like demonic beings can still sense faint demonic fluctuations!""It seems that the inherent power of my heart within me is repelling this crystal," Xu Chen said.

"I see... but it's okay. It's truly fantastic that you can comprehend the Dao God Jade at a glance. From now on, as long as we collect the Dao God Jade and the miraculous objects of the Heavenly Dao at all costs, your strength will rapidly soar. By then, Sister will have someone to rely on! There might even be hope to save Izayoi!" Qingyin said excitedly with tears in her eyes.

"Yes! I have this information. If it's a fluctuation of the Heavenly Dao, I will be able to understand and comprehend it if I touch it," Xu Chen said.

"It's truly unimaginable... By the way! In the battle between you and the Chaos Origin, the inherent will of your heart was unexpectedly triggered. Perhaps, in some unknown way, there is a causal relationship! If you're strong enough, I, I won't have to suffer from..." Qingyin paused.

"What's wrong, Qingyin? Has someone been bullying you?"

"Hehe, it's nothing, just trivial matters. Xu Chen, we must keep this huge secret to ourselves now. Even if you cultivate quickly, you can't let others know, otherwise the entire Demon Realm will see you as a threat! The more advanced the miraculous objects of the Heavenly Dao are, the harder they are to obtain. Before you become strong enough, you might be killed by those Demon Realm experts! So, you must not reveal yourself. Be even more careful during your visit to the Western Hall, be patient, and listen to me, understand? Until you become strong enough to protect me! Promise me! Alright?" Qingyin grabbed Xu Chen's shoulder and said excitedly.

"I understand! Now that I have a path to become strong, I can endure the process. I won't recklessly risk my life for a moment of anger. Even if I, Xu Chen, suffer great humiliation, I will never do such impulsive things that will put Qingyin and the other sisters in danger!" Xu Chen said.

"Alright... as long as you understand..." Qingyin looked at Xu Chen with complex eyes and embraced him tightly.