System Control Battle Mode

Kai stood just outside the run-down building, his heart pounding with a mix of determination and fear. The system's warning echoed in his mind, making him acutely aware of the danger that awaited him inside.

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System Warning:

Detected 20 low-tier warriors and one mid-tier rank warrior. Due to the host having no foundation and training, the host drained too much stamina when running. Fighting against too many enemies at the same time is not advisable for the host.

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"Fuck!" He could only curse. "You must have a solution for you to warn me, right?" he asked, desperation creeping into his voice.

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Quest: Become the Progenitor of Vampires (Completed)

Rewards:

Unlock all locked abilities.

System Control Battle Mode

Obtain a never-ending potion.

Obtain a mount.

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Flask: The host has received the Never-ending Health and Mana Potion. This potion can heal wounds and restore mana. It will refill itself gradually after a day.

System Control Battle Mode: An advanced feature that takes full control of the host's body during combat, optimizing every action to ensure maximum efficiency and effectiveness. It leverages precise calculations and instant reactions to handle complex battle scenarios.

Formless Mount: A shapeshifting mount that is a magical creature that can transform into any form. This makes it versatile for various terrains. It may resemble a horse but can transform into a wide range of creatures, adapting to the needs of its rider. Its transformation abilities depend on its power, magical abilities, and bond with its rider. This mount can traverse land, sea, and air, providing unmatched mobility.

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Kai felt a surge of power as the system integrated the new abilities. The flask appeared in his hand, glowing with a soft blue light. He took a deep breath and drank a small amount, feeling the rejuvenating effects immediately.

"System Control Battle Mode," he commanded, his voice steady.

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System Control Battle Mode activated.

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Kai felt his body tense and then relax, as if an invisible force had taken over. His vision sharpened, and his senses heightened. Every detail around him became crystal clear, and his mind was flooded with battle strategies and calculations.

"Hang on, Hanabi. I'm coming," he whispered, stepping forward.

The door creaked open as Kai pushed it, the dim light from outside casting eerie shadows on the walls. He moved silently, his footsteps barely making a sound. Inside, the men were scattered, their laughter echoing through the dilapidated building.

"Oh, it's just a kid. Who the hell are you, kid?" one of them demanded, raising his weapon while the others started laughing. Hahaha...

Kai's eyes glowed with an intense, otherworldly light. Whoosh... "I'm here for my sister," he said, his voice cold and menacing.

The laughter died down as the men sensed the danger. The leader, a mid-tier warrior, stepped forward, sneering. "You think you can take all of us on, boy? You're in over your head."

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Battle Mode: Calculating optimal strategy...

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Without warning, Kai's body moved with blinding speed. He closed the distance between him and the nearest enemy in an instant, delivering a precise strike to the man's throat. Crack! The man fell, clutching his neck, unable to scream.

The room erupted into chaos. The remaining men charged at Kai, but he moved with a fluid grace that seemed almost inhuman. He ducked under a wild swing, his counterattack swift and lethal. Thwack!

Another man lunged at him, but Kai anticipated the move, sidestepping and delivering a crushing blow to the man's ribs. Snap! The sound of bones breaking filled the air.

The leader shouted orders, trying to coordinate the attackers, but it was futile. Kai was a whirlwind of motion, each strike calculated, every movement efficient. He used the environment to his advantage, dodging behind pillars and using debris to block incoming attacks.

"He's too fast!" one of the men shouted, panic in his voice.

Kai felt the system guiding his actions, optimizing every move. He leaped into the air, delivering a powerful kick to an enemy's head. Wham! The man crumpled to the ground.

"Focus, damn it!" the leader yelled, trying to rally his men. But it was no use. Kai was unstoppable.

He spun around, deflecting a knife aimed at his back, and countered with a precise strike to the attacker's chest. Thud! The man gasped, collapsing to the floor.

The leader, seeing his men fall one by one, decided to join the fight. He charged at Kai, his aura flaring with power. Kai met his attack head-on, their fists colliding with a thunderous Boom!

Kai's enhanced strength and speed gave him the edge. He dodged the leader's follow-up attacks with ease, countering with brutal efficiency. A punch to the gut, a kick to the knee, and the leader was on the ground, gasping for breath.

"You... you monster..." the leader wheezed, blood trickling from his mouth.

Kai stood over him, his eyes glowing with a cold, merciless light. "Where is my sister?" he demanded.

The leader coughed, struggling to speak. "She's... she's in the room... at the end of the hall..."

Kai didn't wait for him to finish. He turned and sprinted down the hall, his footsteps echoing through the building. Thud... thud... thud...

He reached the door at the end and kicked it open. Bang! Inside, he found Hanabi and Mrs. Kimura, tied up and terrified.

"Brother!" Hanabi cried, relief flooding her face.

Kai rushed to them, quickly cutting the ropes that bound them. "Are you okay?" he asked, his voice softening.

Hanabi nodded, tears streaming down her cheeks. "I knew you'd come."

Mrs. Kimura looked at Kai, astonishment and gratitude in her eyes. "Thank you, Kai. You saved us."

Kai helped them to their feet, his mind already racing with their next steps. "We need to get out of here," he said, leading them toward the exit.

As they made their way out of the building, the men who had survived Kai's assault watched them go, too injured and frightened to follow.

Outside, the first light of dawn was breaking, casting a warm glow over the town. Kai glanced at Hanabi, his heart swelling with relief. He had saved her. He had kept his promise.

But he knew this was only the beginning. The world was dangerous, and there would be more challenges ahead. He would need to grow stronger, to protect Hanabi and ensure their safety.

"Thank you, Kai. You saved us," Mrs. Kimura said, her voice trembling with relief.

Kai nodded, keeping his senses on high alert. As they stepped outside, the leader, who had been feigning unconsciousness, grabbed a hidden gun. With a last burst of strength, he aimed at Kai.

Bang!

The shot rang out, echoing through the quiet morning. Kai's body reacted instinctively, twisting to shield Hanabi and Mrs. Kimura. The bullet struck him in the shoulder, the force of it making him stagger.

"Brother!" Hanabi screamed, her eyes wide with horror.

Kai winced, the pain searing through him, but he remained standing. His regeneration immediately began working to heal the wound. "Run!" he shouted, pushing Hanabi and Mrs. Kimura towards safety.

The leader smirked, thinking he had the upper hand. "You should've stayed down, kid," he taunted.

Kai's eyes burned with rage. He charged at the leader, closing the distance in a heartbeat. Before the leader could react, Kai's fist connected with his jaw with a sickening crack!

The leader's eyes rolled back, and he collapsed to the ground, unconscious. Kai stood over him, breathing heavily, his shoulder already beginning to heal.

Mrs. Kimura and Hanabi watched in awe and fear as Kai turned back to them, his eyes softening as he saw their worried faces. "I'm fine," he assured them, though his voice was strained.

They quickly left the building, Kai leading the way. As they moved further from the danger, Kai felt the adrenaline begin to fade, replaced by exhaustion.

Hanabi clung to his hand, her small fingers trembling. "Brother, you were amazing," she whispered, her voice filled with awe and concern.

Kai smiled weakly, ruffling her hair. "I'll always protect you, Hanabi. No matter what."

Mrs. Kimura looked at him with newfound respect and gratitude. "Kai, thank you. We owe you our lives."

Kai shook his head. "Just promise me you'll keep Hanabi safe when I'm not around."

"I promise," Mrs. Kimura said, her voice resolute.

They continued their journey back home, the first rays of the morning sun casting a hopeful light on their path. 

For Hanabi, for their future, Kai would become the strongest.