At the teacher's desk in the classroom, there sat a rebellious girl with smooth and fair legs crossed together, resting her bare feet on a pair of slippers. The slippers had a small dragon pattern on them, swaying as she moved. It seemed like a beautiful scene, but if you looked around, you would realize that this girl was completely out of place in this setting.

The classroom seemed to have experienced some sort of impact, with desks and chairs scattered around, most of them in ruins. The motionless students lined up at the back of the classroom, with members of the student council leaning against them.

The secretary and the treasurer were covered in blood, unconscious. The vice-president with golden hair slowly climbed up from the ground, holding his right arm, blood dripping from the corner of his mouth. His skin was completely damaged, with no intact part left.

"I, I am an esteemed B-ranked Exorcist... 'The All-Powerful Warrior'," the golden-haired boy walked stubbornly towards the girl on the teacher's desk. Despite his expertise in various swordsmanship techniques, his right arm was now broken and his sword was gone, leaving him with no fighting power. But in order to prove himself to Chi Xiaozhu, he launched another attack on the dragon girl.

"Ah ah ah ah ah ah!" The golden-haired boy roared with all his strength as he charged towards the dragon girl, showing no regard for his own life.

However, the result was the same as before. With a light flap of her wings, a gust of wind swept the golden-haired boy away again, slamming him into the sturdy students, as if the sound of bones breaking could be heard.

The ordinary students protected by the Barrier of Time were much stronger than walls. The golden-haired boy probably broke some more bones.

"Damn it..." Chi Xiaozhu tried to stand up using her sword as a crutch, but before she could stand up, her legs gave way and she fell to the ground again. Chi Xiaozhu was a registered A-ranked Exorcist in the Exorcist Guild. Although her ranking was not high among the A-ranks, her strength was definitely not weak. It was just that her lack of combat experience, coupled with facing such a monster, instinctive fear and lack of confidence made her weak and unable to fight.

The members of the student council were originally here to rescue the ordinary students, but they happened to encounter the rampaging dragon. They initially thought it was an ordinary monster and decisively attacked, only to be instantly killed. They finally realized that they had stumbled upon a big boss.

"Don't you have anyone who can fight? Humans are truly useless creatures," the dragon girl said gently, her face showing an exaggeratedly cruel expression, with crimson blood gleaming in her eyes. Her voice was slightly distorted, with a hint of a girl's tone, but also with a demonic touch. Despite her changed expression, voice, and tone of speech compared to before, her beautiful face, delicate features, cross-shaped scars on her face, and the Geisha costume she was wearing all represented that she was the dragon "Dulu".

Such high-level monsters, once they completely rampage, do not reveal their true form. Instead, they maintain their human form, with just a few additional features of a monster. The horns on Dulu's head were a bloody red, and her wings were composed of black and dark red, just like her dark hair, with a touch of dark red at the tips.

"You're making me worry, you clumsy little sister," the dragon girl touched her horn and said something inexplicable.

Then she stood up, awkwardly walked towards Chi Xiaozhu and the golden-haired boy, and said fiercely, "Greedy humans, you should all die!"

Her jade-like hand turned into a dragon claw and aimed straight at Chi Xiaozhu's heart. Suddenly, the dragon girl's long hair was blown by the wind, and a powerful sword energy swept towards her. She casually waved her hand and dispersed the sword energy.

The dragon girl's eyes glimmered with a menacing light as she looked towards the man in a windbreaker who appeared at the classroom door, her mouth curled up in a smile as she licked her lips.

"Code name 'Shuang Yue', looks like you're the one," Minamoto Heart raised his broad-blade sword and walked into the classroom, facing off against the dragon girl.

"Even our names are known to you, you are quite a capable human," the dragon girl spread her wings, placing her hand on her chest, and condescendingly said, "I am a member of the Ghost-faced Dragon Clan, the older sister of Mirror Moons. Human, who are you?"

"Minamoto Heart, a detective," Minamoto Heart's broad-blade sword shimmered with cold light, reflecting the face of the dragon girl Mirror Moons, as he slowly said, "Also an Exorcist."

As soon as he finished speaking, Minamoto Heart raised his sword and made a swift step, rushing towards Mirror Moons. His broad-blade sword came crashing down, heavily landing on Mirror Moons' dragon claw. The powerful sword energy collided with the dragon claw, shattering everything scattered around. Minamoto Heart furrowed his brows, his right hand trembling slightly, while Mirror Moons seemed completely unbothered. After flashing a wicked smile, she suddenly swung her other dragon claw towards Minamoto Heart. He blocked with his sword sheath, but was forced back by Mirror Moons' immense strength. Minamoto Heart took several steps back, lowered his head to look at the blood flowing from his left hand, and furrowed his brows even more."Defensive posture, abandon." Minamoto Heart said calmly, the light on the scabbard instantly disappeared, and the light of the blade became even brighter. He retracted the scabbard behind his back, tightly gripping the wide blade sword, and took a step back, assuming a stance ready to attack at any moment.

Minamoto Heart, nicknamed the "Forbidden Dual Extreme," normally maintained a state of being both offensive and defensive in battle. He would not reveal his trump card unless absolutely necessary. The so-called "Forbidden Dual Extreme" referred to Minamoto Heart's ability to sacrifice either attack or defense in order to maximize the performance of the other. Due to the pros and cons of this ability and the need to use it sparingly, it was considered a taboo.

Minamoto Heart's figure suddenly flickered, turning into a gust of wind sweeping towards Mirror Moons, sweeping the wide blade sword across her waist. Minamoto Heart, abandoning defense, reached the pinnacle in terms of speed and damage. If hit by this strike, even a high-level A-ranked or above magic dragon would be heavily injured.

However, to Minamoto Heart's surprise, just as the wide blade sword was about to hit, Mirror Moons suddenly raised her wings and leapt into the air, evading the attack. The enormous sword energy swept in the air, cutting a long gap in the wall in front, almost splitting the classroom in half.

Floating in the air, Mirror Moons lightly opened her cherry lips, and dark red flames converged in her mouth. The ghost-faced magic dragon was a black flame dragon, and its flame breath was something that every creature feared. While the flames were still forming, Minamoto Heart quickly moved, stepping on the surrounding walls to perform an agile movement, vowing to engage in a life-or-death battle with the dragon girl in mid-air.

Trembling, Chi Xiaozhu curled up in a corner. She knew very well that if she continued to stay in this classroom, she would eventually be affected by the powerful attacks from those two. As the only one lightly injured among the members of the student council, only Chi Xiaozhu could lead them out of here.

"Quick, move! Move!" But no matter how hard Chi Xiaozhu tried, she couldn't stand up. Even if she forcefully clapped her legs, she still couldn't summon the strength.

"Be careful!" Suddenly, Minamoto Heart's voice sounded in her ears. Chi Xiaozhu looked over and was so scared that she fainted.

Just now, Minamoto Heart's powerful attack collided head-on with the flame breath of the dragon. However, the energy of the flames was astonishing, directly shattering Minamoto Heart's sword energy. The out-of-control sword energy turned into highly destructive "energy bullets", destroying everything around. Although the flame breath defeated Minamoto Heart's attack, it was also affected to some extent. The path of her flames deviated and flew towards Chi Xiaozhu together with some of the damaged "energy bullets".

"Offensive posture, abandon!" Minamoto Heart shouted, the light on the blade instantly disappeared, and the energy emanating from the scabbard transformed into the shape of a shield. He drew out the scabbard and rushed towards Chi Xiaozhu, but his speed was still slightly slow. Just as the fire and damaged sword energy were about to hit Chi Xiaozhu, he closed his eyes, feeling somewhat remorseful. And because of this, he did not witness the astonishing scene that followed.

Suddenly, a curly-haired boy appeared in front of Chi Xiaozhu.

The next second, all the attacks turned into nothingness.