Inside the Daqian Imperial Palace, Song Yunyang held the map that Chen Zhennan had left for Song Yunming. His eyes were sharp as he stared intently at the intricate lines and markings on the map, constantly analyzing in his mind the four routes that Zhou Jianjia could take directly to the capital of Dawu.

These four routes are like four hidden blades, each with an extremely high probability of success.

Song Yunming stood quietly to the side, his eyes filled with curiosity and anticipation, and asked softly, "Sister, should we send troops next? This is an opportunity that must not be missed."

Song Yunyang turned to look at him and slowly shook her head. "Little brother, don't be anxious. Chen Zhennan asked us to stay, so we can't act rashly. We need to be cautious."

In the following days, Song Yunyang led Song Yunming into the territory of Dawu, like two detached yet insightful observers.

Wherever they went, they found battlefields filled with smoke and the flames of war.

While observing, Song Yunyang explained in detail the strengths and weaknesses of both sides to Song Yunming, and analyzed the tactics and strategies.

On the battlefield, the shouts of battle were deafening, as if they were about to tear the sky apart.

The soldiers on both sides clashed like surging tides, their swords flashing and clashing.

A soldier from the Great Wu, wielding a long sword, roared and charged towards the enemy. The long sword flashed through the air with a cold light, slashing at the enemy with the force of "splitting Mount Hua".

The opposing soldier was not to be outdone. He dodged the fierce attack by sidestepping, and then swept his spear towards his opponent with a whistling sound.

In an instant, blood splattered as the Great Wu soldier's chest was slashed open by the spear, and crimson blood gushed out, staining the ground beneath his feet.

His eyes widened, he spat out a mouthful of blood, and then collapsed straight down, his face still bearing the ferocity of battle.

The bloodshed and cruelty of war had numbed Song Yunyang and her brother, and they felt no discomfort from such bloody scenes.

Song Yunyang remained calm. Pointing to a spot on the battlefield, she said to Song Yunming, "Brother, look here. Although Zhou Jianjia's army is slightly smaller in number, they are well-trained and their tactics are flexible and varied. They are good at using flanking maneuvers. Look, their vanguard pretended to retreat, luring Da Wu's pursuers deeper into the fray, and then ambushed troops suddenly appeared from the left and right flanks."

Song Yunming listened intently, his eyes fixed on the situation on the battlefield.

"Sister, what about Da Wu? Don't they have any advantages?"

Song Yunyang frowned slightly and said, "Da Wu has a large and powerful force. If Chen Zhennan were leading the team, I believe they would have a better chance of winning. Unfortunately, although they have a large number of people, they have no momentum at all. Da Wu's finances are stretched thin, and the root of the problem lies with the imperial court."

As she spoke, Song Yunyang pointed to a thin supply line on the map.

“Look, although Zhou Jianjia’s army is powerful, their supply lines are too long. This is indeed a good time for us to make a move, but Chen Zhennan won’t let us. It’s a real pity.”

Song Yunming sighed and said in a low voice, "I really don't know what my brother-in-law is thinking. Waiting for the right opportunity and adapting to changing circumstances are our cavalry's strengths, but now we can only..."

"You called him brother-in-law? I...did I hear that right?"

Song Yunming gave an awkward smile. "Well, you heard me right. Chen Zhennan told me that he would make you his empress in the future, and he's the one who told me to call you that."

Wu Yunyin was speechless for a moment, but she didn't say anything more and turned to continue observing the situation on the battlefield.

The stench of blood on the battlefield grew stronger. Corpses lay scattered about, some missing limbs, others decapitated. The pungent smell of blood mixed with the scent of earth was nauseating.

A hint of reluctance flashed in Song Yunyang's eyes, but it was quickly replaced by determination.

"Yunming, you must remember that there is no mercy on the battlefield. What we need to do is to protect our soldiers as much as possible while delivering a fatal blow to the enemy."

Song Yunming nodded slightly: "I know, sister. When your brother-in-law ascends the throne, I will be your coldest blade and your strongest shield."

Song Yunyang couldn't help but smile. Although her younger brother had been through countless battles, he still retained a childlike innocence, which made him somewhat adorable.

"That's enough, let's go back. Da Wu can't hold out any longer and will have to withdraw soon."

With that, Song Yunyang put away the map, and the two of them mounted their horses and hurriedly left.

Song Yunyang and her younger brother Song Yunming returned to the Daqian Imperial Palace after a long and tiring journey. As soon as they stepped into the palace gate, they saw that Gu Siyao had been waiting there for a long time.

When Gu Siyao saw Song Yunyang and her brother, she hurriedly went to greet them, her face full of anxiety, and said, "Marshal Song, the commander sent me. The commander wants you to return to Da Yan before the end of the month."

Upon hearing this, Song Yunyang frowned slightly, her mind a jumble of thoughts as she quickly calculated the time and distance.

If they were to lead eight thousand iron cavalry, their marching speed would inevitably be limited, and they would have to return to Great Yan before the end of the month, so time was indeed tight.

"Sister, what should we do?" Song Yunming asked, a hint of anxiety in his eyes.

After a moment of contemplation, Song Yunyang finally made a decision: "Brother, given the current situation, time is of the essence. You stay here, and Siyao and I will return to Dayan first."

Although reluctant, Song Yunming could only nod and reply, "Sister, the journey is arduous, please be careful."

After making the decision, Song Yunyang asked Gu Siyao to rest in the palace for a while and prepare for the itinerary the next morning.

As night fell, the palace lights gradually went out, but Song Yunyang tossed and turned in her room, her heart filled with worry.

The next morning, just as dawn was breaking and the east was turning a pale white, the entire palace was still shrouded in a hazy morning mist.

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