Reincarnated with an Analysis system.

As the battle raged on, General Mort's forces continued their relentless march towards the forest, undeterred by the ferocity of the enemy's defenses. The ground shook beneath their feet as they advanced, their weapons raised high, ready to strike down any who stood in their way.

Meanwhile, the other half of the army led by General Mort himself, stood firm, holding the line against the onslaught of Nervek's forces. The clash of metal echoed throughout the battlefield as soldiers fought tooth and nail to gain the upper hand.

Amidst the chaos, cries of pain and fury filled the air as the two armies clashed in a brutal struggle for dominance. It was a scene of utter carnage, with bodies littering the ground and blood staining the earth.

"Damnit, how is a small village like this giving us so many problems!" A female demon complained as she ran on foot with different demons following behind her.

The female demon came to an abrupt halt as her sharp eyes caught sight of Erza, standing alone in the middle of the path.

The ground beneath them trembled with the sheer force of Mort's army marching towards the forest, but Erza stood unwavering, her red hair flowing in the wind as she held her sword with a determined expression.

The demon's crimson eyes narrowed as she assessed the situation, her hand instinctively reaching for her own weapon at her side

'An enemy?' The female demon thought to herself with her eyes scanning the area, 'She's by herself though'.

The male demon shifted his weight, his eyes scanning Erza from head to toe, his sharp claws glinting in the dim light. The female demon stood beside him, her expression uncertain as she took in the sight of the lone warrior blocking their path.

"Hey, what do you think, should we attack?" The male demon asked, his voice dripping with malice. The female demon hesitated, her eyes flickering nervously as she assessed the situation.

She knew that attacking Erza could be dangerous, but she also knew that they couldn't afford to let anyone stand in the way of their mission.

"Wait," She said finally, holding up a hand to forestall any further action from the male demon. "Let's see what she wants first. We don't know anything about her, or why she's here".

The male demon snorted, clearly not pleased with the delay. "Fine," he growled. "But don't take too long. We have a job to do."

"Hello," The female demon called out, "There's a war going on right now, it's not safe for you to move around these parts."

Erza turned to face the demon, her expression unreadable. Without a word, she reached into a leather satchel hanging from her belt and pulled out a thick, leather-bound book.

She opened it with a loud thud, revealing pages filled with strange symbols and intricate diagrams. The book began to emit a bright, golden light that illuminated her face and cast a glow on the surrounding area.

The male demon, with his body taking the form of someone ready to strike. "What kind of magic is that?" He asked in awe.

Erza didn't answer, but continued to focus on the book as if searching for something. "Aahh, there we go." She suddenly spoke.

Erza stood in the middle of the battlefield, surrounded by the chaos of war happening from a far distance. The ground shook beneath her feet as demons clashed with Sato's forces, each side vying for supremacy.

With a determined look on her face, Erza began to chant, her voice strong and unwavering. "By the light of the stars and the power of the heavens, I call forth celestial spirits to answer my beckon. With this incantation, I open the gate, Let my words be heard, for my will is fate."

The demons quickly took notice of her spellcasting, and one of them yelled out in alarm. "It's a summoning spell!"

The leader of the demon horde scowled at the revelation. "Attack! Strike her down before she completes that spell!".

Some of the demons charged towards Erza, while others stood back and began projecting elemental magic at her. But before their attacks could land, Luna, one of Erza's maids, emerged from the ground in front of her and swiftly erected a barrier.

The barrier crackled with energy as the demons' attacks collided against it, but it held strong. Erza stood calmly behind it.

"Lady Erza, don't worry about them, we'll keep them away. Just focus on the summon," Xanxia said as she appeared beside Erza, her hand outstretched as a rush of water charged towards the demons.

From the cliffs, Sebastian and Shuna emerged, fighting off the demons to keep them away from Erza.

Erza smiled and closed her eyes, focusing on calling forth the power of the heavens.

"O, celestial spirits, creatures of the divine,

Come forth from your realm, and bring me a sign.

With your grace and your might, I beseech you to appear,

And lend me your power, so that I may conquer my fear… Gate open!" She recited with confidence.

"It's no use! Stop her before she can make any summoins!" the male demon ordered as his comrades charged towards Erza.

But before they could reach her, a bright light erupted from the ground, blinding everyone momentarily. When their vision cleared, they saw several celestial spirits standing before Erza, ready to do her bidding.

Xanxia, Sebastian, and Shuna stood guard as Erza gave her commands to the hundreds of celestial spirits gathering in the air, her voice filled with authority and power. The demons watched in fear and awe as the celestial spirits carried out their tasks with precision and skill.

They began fighting, The battle was intense and brutal, with each side fiercely fighting for their own cause. However, it quickly became apparent that the celestial spirits had the upper hand. They moved with grace and precision, tearing through the demon forces with ruthless efficiency.

Despite their best efforts, the demons were no match for the power of the spirits. Limbs were severed, bodies were torn apart, and blood flowed freely on the battlefield.

When the fighting finally came to an end, the demons were forced to retreat with only a small fraction of their original numbers. The celestial spirits stood victorious, their forms glowing with a divine radiance as they slowly returned to their realm