The blood-colored energy sliced through countless Yin soldiers, eradicating them in swathes.
On the other side, Chen Qingzhi's strength was not to be underestimated. He seemed to be a natural nemesis to these Yin soldiers, possessing an aura akin to a ghost king that made them cower and keep their distance. Even if they got close, their power was significantly hampered.
Conversely, Chen Qingzhi himself was already powerful. Coupled with the numerous skills he had learned in the [Scripture Pavilion], a single skill could wipe out a large number of Yin soldiers.
The others also displayed impressive strength. Wu Song, for instance, hailing from [Zui Xian Lou] and a specially recruited hero who retained his complete memories, was initially quite weak.
However, after evolution, job change, and learning new skills, his combat power had greatly increased.
He had taken on the profession of 'Tiger Slayer' (Fu Hu), and with every strike, he unleashed terrifying combat power, like a ferocious tiger.
The rest were also formidable. Meng Yi, a battlefield hero, performed exceptionally well, decimating the Yin soldiers and scattering them in disarray.
Despite their numbers being only a few thousand, they had killed tens of thousands in a short period, tearing a massive opening in the endless Yin soldier army and then systematically eliminating them.
Even though the Yin soldiers were numerous, and wave after wave was annihilated, their combat strength remained formidable. No matter how many Yin soldiers appeared, they could not inflict any damage on them.
Zhou Yan, Bai Qi, and Chen Qingzhi, charging at the forefront, were like three sharp blades, completely shattering the Yin soldiers' formations and creating gaping holes in their encirclement.
Wherever they were, Yin soldiers fell in droves, with none able to withstand them for even half a step.
This grand hall was indeed vast and long, capable of accommodating countless armies to battle. Zhou Yan and his group were not in a hurry; instead, they were quite pleased.
This was because defeating these Yin soldiers yielded Soul Boxes, which contained Soul Coins, precisely what he needed most at the moment. Therefore, he was more than willing to continue slaughtering these Yin soldiers here indefinitely.
Zhou Yan realized that after entering through that iron gate, this place must be another dimension, or perhaps a modified cave. Otherwise, it wouldn't be possible to have such a massive underground world, and they had been fighting for so long without reaching an end.
An hour later, the three of them had cut through the Yin soldiers. However, they did not find themselves without enemies; instead, stronger Yin soldier contingents appeared.
Subsequently, Meng Yi and the others also arrived. Seeing the Yin soldiers ahead, exuding even denser spectral energy, they were astonished. Just how many of these Yin soldiers were there!
"Lord, the number of these Yin soldiers is simply too vast. The ones ahead appear even more powerful and seem difficult to deal with," Yan Chixia said with a hint of concern after careful observation.
"So, we were just dealing with pawns before. These are the main forces. These Yin soldiers are truly despicable, even using pawns to wear us down," Meng Yi clenched his weapon, ready to attack the monsters ahead.
"What's there to fear? No matter how many Yin soldiers there are, we'll kill one if one comes, and a group if a group comes. I, Wu Song, will lead the charge!" With that, Wu Song licked his lips, grinned at Zhou Yan, and scratched his head, saying, "Lord, I'm a bit thirsty after fighting for so long. Could you grant me a drink?"
"Hahaha..." Zhou Yan chuckled and replied, "Don't drink too much."
"Thank you, Lord!" Upon hearing this, Wu Song's eyes lit up. He eagerly took out a pot of wine he had prepared earlier and couldn't help but take a gulp.
"So fragrant!"
After drinking the wine, Wu Song felt invigorated, and his combat power significantly increased.
This was Wu Song's passive skill, 'Drunkenness' (Zui Jiu), activating. The more he drank, the more his strength would improve.
Zhou Yan spotted several generals riding spectral steeds. Their auras were potent, their strength considerable, several tiers higher than the Yin soldiers they had encountered before.
The soldiers behind them quickly finished off the remaining Yin soldiers and regrouped. Their fighting spirit was high, their morale boosted, showing no signs of having just endured a fierce battle.
Zhou Yan looked back and asked, "Can you still fight?"
"Kill, kill, kill!!!"
The soldiers, their fighting spirit ignited, roared their assent.
"Good!" Zhou Yan raised his weapon again, pointed his sword forward, and declared, "Form up and charge!"
"Kill!"
They charged towards the Yin soldiers ahead once more. The Yin soldiers in front were indeed very different from the previous batch. They were more powerful, their spectral energy denser, and they had even formed an array, creating a massive skull that charged towards them.
"Quite interesting." Zhou Yan smiled.
"Lord, I will break their formation!" Bai Qi said without fear.
"Good!" Zhou Yan replied.
Bai Qi's speed erupted, and his blood-colored aura intensified. His powerful killing intent caused the death aura of the Yin soldiers to recoil, making them dare not approach.
Bai Qi transformed into a blood-colored lightning bolt, raised his long sword, and unleashed a boundless sea of blood. This blood sea was terrifying, capable of drowning countless armies.
The blood sea directly engulfed the Yin soldiers' skull formation. A few seconds later, an explosion sounded, and the entire skull formation detonated.
Bai Qi, with his own power, single-handedly shattered this elite Yin soldier army, then plunged into their ranks, commencing a rampant slaughter.
"Well done." Zhou Yan nodded. Bai Qi truly lived up to his name; his personal strength, command, and combat prowess were all exceptionally powerful.
Zhou Yan also circulated his Yin and Yang energies and unleashed a sword strike.
"Boom!"
The terrifying sword energy annihilated countless Yin soldiers. Even though these Yin soldiers were much stronger than the previous ones, the gap between them and Zhou Yan was simply too immense.
Chen Qingzhi, following behind, seized the opportunity and led his army towards the Yin soldiers. Their battle array possessed formidable destructive power. Wherever they charged, Yin soldiers fell in droves. Their formation had already been broken by Bai Qi and Zhou Yan, rendering it incapable of its greatest destructive potential, leaving them to be slaughtered by the soldiers.
Wu Song transformed directly into a massive tiger, charging and rampaging. With a single swipe of his claws, several Yin soldiers turned to dust. A fierce tiger roar echoed for a hundred meters, directly killing the Yin soldiers within that area.
Meng Yi wielded his sword, killing Yin soldiers one by one. With each sword strike, several Yin soldiers were annihilated.
The other soldiers also attacked, charging into the Yin soldiers. They fought in coordinated groups, with three soldiers forming a unit, and several such units forming a larger formation. Thus, they pushed through the Yin soldiers, systematically eliminating them.