She instinctively reached out her hand, but suddenly snapped back to reality and quickly withdrew it.

However, her body couldn't help but lean a little closer to Bai Feng.

Sitting beside him, the celestial bone within her quieted down, yet she could still feel its subtle activity. Influenced by the celestial bone, even the flow of spiritual energy within her sped up a bit.

"Why is this happening?"

Bai Yu Mo looked at Bai Feng, confusion etched on her face. She had never encountered anything like this before.

As she sat next to him, the celestial bone within her occasionally trembled, as if yearning for something.

Gradually, the sky outside darkened completely, and even the flames in the servant quarters of the city lord's mansion were extinguished.

Only then did Bai Feng open his eyes. He slowly exhaled a breath of stale air. After his training, he felt a surge of power coursing through him. Although he hadn't tested it, he could sense that his physical strength had increased significantly, along with notable improvements in defense and endurance.

This was just pure training; if he combined it with body tempering, the results would surely be even better.

Truly, the celestial techniques lived up to their reputation; he was not disappointed.

Bai Feng stretched his body. "Once I master this, I won't be just a fragile control anymore!"

At that moment, he suddenly noticed Bai Yu Mo resting beside him, so he reduced his movements.

"When did you get here?"

Bai Feng murmured softly, glancing at Bai Yu Mo, who seemed to be asleep. He didn't want to disturb her, planning instead to heat up some meat porridge. After his training, he found his appetite had improved quite a bit.

Just as he stood up, Bai Yu Mo suddenly opened her eyes.

"Brother? Are you done training?"

She quickly stood up and stared at Bai Feng for a moment, but this time, the celestial bone showed no reaction.

Bai Feng nodded, then noticed the way Bai Yu Mo was looking at him was a bit strange. He asked, "What's wrong? Is there something on me? By the way, why were you resting next to me?"

"Um, actually, while you were training, my celestial bone reacted strangely," Bai Yu Mo admitted honestly. "It felt like it was craving something."

"Huh? Really?"

Bai Feng was taken aback, and in an instant, he thought of the body tempering technique he had been practicing.

But why didn't her celestial bone react when he was practicing the divine mind technique? Was it because he was primarily focusing on spiritual awareness?

After pondering for a few seconds, he began to circulate the divine mind technique. The next moment, he saw Bai Yu Mo staring intently at him, as if he were some rare treasure.

"Brother, what kind of technique are you practicing?"

Bai Yu Mo reached out to touch him, feeling as if her celestial bone was about to leap out.

If she didn't trust that Bai Feng wouldn't harm her, she might have suspected he was preparing to take her celestial bone for himself.

"It's a rather special technique," Bai Feng said after a moment of thought, looking up at Bai Yu Mo with a smile. "Do you want to learn it?"

Bai Yu Mo nodded eagerly. "Yes, yes!"

"Alright, let me think about how to teach it."

After some contemplation, Bai Feng decided not to hide the body tempering technique from her and prepared to teach it to Bai Yu Mo.

After all, the stronger Bai Yu Mo became, the safer he would be, and he trusted her.

He had previously refrained from teaching her the divine mind technique purely because it was not very compatible with her, especially since she was a more traditional sword cultivator. The benefits of cultivating spiritual awareness were minimal and would only waste her energy.

But the body tempering technique was different; even the fact that her celestial bone reacted to it was enough reason. Moreover, there were elements of body tempering in sword techniques, and some sword cultivators even specialized in body tempering techniques.

---

Bai Feng did not hold back, teaching the body tempering technique to Bai Yu Mo word for word.

As she began to practice, a faint white light emanated from her body, clearly indicating that her celestial bone was responding.

"Eh?"

Bai Feng thought to himself, surprised at how well the body tempering technique matched with the celestial bone. It even produced a phenomenon.

He instinctively thought of his system. If he followed the system's plan to become the ultimate villain, then the celestial bone on Bai Yu Mo should belong to him. This reward was starting to seem quite intriguing.

Could it be that the body tempering technique really had something to do with the celestial bone?

While Bai Feng's mind wandered, the white light surrounding Bai Yu Mo began to fade. However, upon closer inspection, one could see her skin appeared tighter and smoother. If one got close enough, they could faintly smell a delicate fragrance, and she exuded an ethereal aura that seemed untouched by the mundane world.

She slowly opened her eyes, feeling the changes in her body. If before the celestial bone felt like a foreign object, or a spiritual tool lodged within her, now it had perfectly integrated into her being, becoming a part of her.

No one could take her celestial bone away now; if forcibly removed, it would only yield a useless fragment that couldn't merge with anyone else.

"Brother, thank you."

Bai Yu Mo hugged Bai Feng. Although she had possessed a celestial bone that many envied, she had always felt it was a thorn that could take her life at any moment, making her see everyone as a potential threat, even leading her to misunderstand Bai Feng.

But now, it was Bai Feng who had completely removed that thorn from her heart. Just as he had said before, he truly didn't care about her celestial bone; he treated her well simply because she was his sister.

Bai Feng was unaware of Bai Yu Mo's thoughts. He reached out to pat her head, instantly feeling that her hair was different.

This feeling... so soft, so smooth, he almost couldn't stop himself.

"Brother..."

Bai Yu Mo, nestled in his arms, let out a dissatisfied sound, prompting him to stop. He awkwardly asked, "By the way, did you succeed in your training? How do you feel?"

"Mm." Bai Yu Mo reluctantly released Bai Feng, nodding. "My celestial bone has completely merged with me now. Even if someone tried to forcibly remove it, it couldn't be transplanted to anyone else."

"That's great!"

Bai Feng was a bit surprised, and his heart gradually confirmed his suspicions.

The body tempering technique might indeed have been specifically prepared by the system for him to reclaim bones. It was just unfortunate that he hadn't chosen to dig for bones.

But why was it only given to him now?

Could it be that because he had never dug for bones, the system couldn't deliver the reward? After a delay, it simply decided to throw him a bone, so to speak, giving him a technique that was of no use?

Or perhaps it was because he had subjectively wanted a technique to enhance his body, or the system objectively thought he needed one, so it randomly picked a technique from the reward pool and handed it to him.

If the body tempering technique was meant to merge with celestial bones, then did the divine mind technique have other uses as well?

Never mind, that wasn't important! Even if it did, he might not encounter it.

"Brother, this technique must have quite an extraordinary origin, right?"

Bai Yu Mo lightly rolled up her sleeves, revealing her fair arms. Even disregarding the fusion of the celestial bone, the enhancement this technique provided was significant.

"Indeed, it's not simple."

Bai Feng nodded. This was a celestial technique! Even a holy land might not possess a complete celestial technique; if it were to be revealed, it would surely cause a frenzy.

"By the way, don't tell anyone else that I found this technique next to the celestial fire and only recently succeeded in practicing it."

He reminded Bai Yu Mo, not explicitly stating it was a celestial technique but hinting at it with a fabricated excuse.

"Mm."

Bai Yu Mo nodded. Even if Bai Feng hadn't reminded her, she would never tell anyone.

"However, had I known it would help you so much, I should have shown it to you earlier." After the reminder, Bai Feng shook his head with a smile, patching up his excuse.

"It's not too late now!"

Bai Yu Mo smiled back, feeling a warmth in her heart. Bai Feng was willing to share such an important technique with her without hesitation, even though it could elicit a response from her celestial bone. Although they weren't blood-related, he clearly didn't treat her as an outsider.

Yet, thinking about her relationship with Bai Feng, she couldn't help but feel a bit gloomy.

While their sibling bond allowed her to approach him without reservations, it also created an insurmountable barrier.

But that was okay; she believed that through her efforts, she could gradually change Bai Feng's impression of her.

"Brother, it's already quite late. Can I stay here tonight?"

Bai Yu Mo pretended to glance at the pitch-black window before looking at Bai Feng, seemingly a bit shy as she asked.