Chapter 107: Harmonizing Yin and Yang

The crystal suddenly blazed bright, shifting from deep blue to an almost transparent light blue; faint runes like those on the sheet appeared on its surface, flashing briefly before returning to normal.

It was as if nothing had happened.

Both felt a bit dazed.

After a while.

"Did you feel that?" Zhang Jun spoke first, his voice a little hoarse.

Lin Xue nodded lightly, her finger unconsciously touching the blue crystal on her chest.

"That heart method… seems to have been prepared for us."

"Yin and yang share the same source, hardness and softness complement each other…" Zhang Jun muttered quietly, suddenly forming a hand seal and attempting to circulate his pure yang power.

That warm current inside him, this time unusually obedient, followed the path described in the heart method, flowing smoothly through his meridians without a hitch.

Even stranger, this power no longer surged wildly but naturally flowed toward Lin Xue's direction.

Lin Xue felt it too.

She said nothing, tacitly circulating her profound yin qi, which resonated from afar with Zhang Jun's power.

The air between them seemed to come alive, subtly undulating, forming a barely perceptible field.

Golden currents and blue chills swirled around them, probing, drawing near.

Finally, they cautiously touched in the middle and merged.

"This…" Lin Xue whispered.

Zhang Jun also looked surprised.

Where their powers converged, there was no expected clash; instead they reached a strange balance.

Gold and blue intertwined, forming a semi‑transparent vortex that hovered between them.

They continued to guide their power according to the heart method.

The vortex slowly grew; Zhang Jun felt his pure yang power become purer, and the fatigue from his earlier visit to the Research Institute quickly faded.

Lin Xue likewise felt her profound yin qi more active than ever, yet unusually docile, flowing at her will.

This state lasted roughly ten or so minutes.

Both simultaneously felt their power had reached a juncture where it could advance no further.

The heart method is incomplete; the path ends here.

They could only slowly withdraw their cultivation.

The vortex dissipated, the room returned to calm, leaving only the two of them with slightly hurried breaths.

Zhang Jun opened his eyes and realized that, without noticing, he and Lin Xue had drawn very close—almost able to feel each other's breath.

Lin Xue's cheeks showed an unnatural flush, and the blue crystal on her chest still glowed faintly.

"This heart method…" Zhang Jun coughed, stepped back half a pace, "is specially meant to harmonize yin and yang."

Lin Xue nodded, her feelings somewhat complex.

"Our power seems to be meant to be like this."

"Too bad it's a fragment." Zhang Jun frowned, "Only the beginning remains; there's nothing after. Practicing like this will surely cause problems."

"Why did Kun give us this?" Lin Xue walked to the window, not looking at Zhang Jun, "What is he after?"

Zhang Jun did not answer right away.

Kun's words echoed again in his ears—"When the time comes, I'll borrow your two's strength to handle something."

Yin and yang complement each other, power grows, and they can even fuse… What exactly is Kun scheming?

"No matter what he's after, this heart method is useful to us." Zhang Jun finally said, "At least, when we meet those monsters from the Research Institute again, we can hold out a bit longer."

Lin Xue turned, her expression returning to its usual cool composure.

"Then… shall we continue practicing?"

"Practice." Zhang Jun nodded.

The two returned to their original positions and circulated the heart method again.

This time, their power blended much more smoothly, and the vortex was more stable.

As their practice deepened, they discovered a strange phenomenon—when their power fused to a certain extent, they could faintly sense each other's emotions and physical condition.

It was very faint, but it definitely existed.

This sudden "connection" made them both feel a little awkward, yet the benefits of cultivation were genuinely real.

Their power surged rapidly through mutual complement; even Zhang Jun's old shoulder injury felt considerably better.

Time quietly slipped by.

The two were completely immersed.

Until a sudden, urgent knocking sounded at the door.

"Doctor Zhang? Miss Lin?" Su Muqing's voice came from outside, clearly worried.

Zhang Jun and Lin Xue were startled awake; the vortex vanished instantly.

They looked at each other, both feeling an indescribable emptiness, as if something important had been interrupted.

"Come in." Zhang Jun replied, his voice a little hoarse.

Su Muqing pushed the door open, holding several insulated containers.

"I heard from Old Mo that you were injured, so I…"

She trailed off mid‑sentence, looking at the two in the room, a bit dazed.

In the back chamber, the air seemed to still retain some special aura.

Zhang Jun and Lin Xue appeared calm, but the feeling between them was off—an elusive connection, unlike before.

Moreover, although Su Muqing had heard they were injured, the two now looked full of vigor, their complexion even better than before their visit to the Research Institute.

"You……" Su Muqing carefully set down the lunch box, "Are you all right?"

"I'm fine, thanks." Zhang Jun took the lunch box, "Just been pondering something."

Lin Xue walked over and poured tea for the three of them.

She noticed Su Muqing's gaze sweeping back and forth between her and Zhang Jun, filled with curiosity.

"As for the research institute, I heard about it from Old Mo." Su Muqing lifted her teacup, trying to keep her voice normal, "Hengrui's side is also in an uproar. Manager Liu has gone missing, and everything inside is in chaos."

"They're dead." Lin Xue said flatly, "That monster at the research institute did it, Zhou Mu too."

Su Muqing's face turned pale, and she almost dropped her teacup.

"Monst… monster? What monster? Old Mo didn't mention this!"

Zhang Jun briefly recounted what had happened at the research institute, omitting the part about Kun and not mentioning the black sheet or the heart method.

"Good heavens……" Su Muqing listened, then remained silent for a while, "So that means the 'Blood Genealogy' and Lin Zhen are really conducting those inhumane experiments? They want to create…… a monster army?"

Lin Xue shook her head.

"Not entirely. Those monsters are just failures; what they truly want is to find a way to balance yin and yang."

"Why?" Su Muqing asked instinctively, then cut herself off, "Never mind, no matter why, this is too terrifying. You should call the police right away, or…… get a special department involved!"

Zhang Jun and Lin Xue exchanged a glance.

"Not yet." Zhang Jun said slowly, "We don't have enough evidence. The research institute has been destroyed, Hengrui is preoccupied with its own troubles, and Bai Cao Tang, without Zhou Mu, can't make a big move for now."

Su Muqing moved her lips, but didn't pursue the question further.

She felt that the two of them were hiding something from her.

Especially that subtle atmosphere between them made her feel a bit…… excluded.

"All right." She still didn't ask further, "But promise me that if anything goes wrong, you'll let me know right away. Zhengyang Technology has more resources at its disposal than you think."

"Don't worry." Zhang Jun nodded.

The three of them had a simple bite to eat, then Su Muqing rose to take her leave.

Before leaving, she glanced at them again, wanting to say something but holding back.

"Take care."

In the end, she only said those two words and walked away, full of doubts.

The door closed, and the room fell silent.

"She figured it out." Lin Xue said softly.

Zhang Jun sighed.

"Anyone could tell. This heart method…… has made our relationship a bit weird."