All Hail the King (Harem) [Has A Rewrite]

The Mad Dog of the Demon King

As Leo turned towards the mighty roar, his eyes immediately filled with fear. People began to scatter screaming as a shadowy black knight stood in the center of the beach. His eyes glowed red as it stared at Saber Lily and Archer with intense anger. It's left hand, being held by his tattered white robe, was a bloody and badly injured Merlin who seemed to unconscious.

"ARTHURRRR!!!!,"the knight immediately roared again as it dropped the fallen wizard as it started racing towards the trio in inhuman speed.

The blonde haired boy began to back away in fear and honestly didn't know what do. He had never seen something like this before let alone fight it. Lucky for him, Saber Lily and and Archer immediately went into action. The Knight Princess summoned her sword in a flash of light before charging towards the knight with the same unrealistic speed as the two met in a might clash that sent on shockwave across the beach. Meanwhile, Archer grabbed her water gun from the ground as she summoned her own sword from flash of light. However, this blade seemed stronger than Lily's and looked like it radiated divine light.

She then turned to Leo as she yelled, "Don't worry, beloved. We'll take care of this monster! You go help Merlin!!"

Leo immediately nodded as he raced toward the white haired man while watching Saber Lily fight the black knight who apparently summoned its own sword when he wasn't looking and they were now clashing blades. While the Lily seemed to be keeping up with the black knight, it seemed the it had more power than she did and with each hit it landed, the boy could tell that she was slightly getting knocked back. If she had been fighting this monster alone, Saber Lily probably couldn't defeat it.

Luckily, she wasn't because as the two fought, Archer held up her water gun and fired several high pressure blast of water, which normally would think would come out of a water gun, at the black knight. As they hit, the blasts knocked the knight back as it focused on the Artoria in a swimsuit. However, before it could react, Saber Lily swung at it slicing its helmets off. As the helmet, the two girls gasped at the knights true identity.

"Lancelot?!," both versions of the King of Knights exclaimed hardly believing that their friend had now become this rabid monster.

Lancelot roared again as it raced not towards either of the Artorias, but Leo who had now reached Merlin and was starting to pick him so he get him to safety.

As he saw the monster flying towards him, Leo just groaned. "Oh come on!!! Why me?!"

As the black knight was about to plunge his sword into the blonde boy's chest, he was once again knocked away by several blasts of water from Archer who was now running towards them as her gun and sword glowed with divine light. The beach beauty just kept firing keeping Lancelot off his feet unable to move until she stopped right in front of him and started slashing him with her divine sword. With each slash, Lancelot howled in pain as Archer stopped slashing while she connected her sword and gun together as the light they radiated burned brighter.

The blade begun to spin rapidly as Lancelot glared up Archer as she screamed, "Excalibur....VIVIAN!!!!!"

With that, the black knight was placed straight in the face, a giant mixture of water and divine blast hitting him with all its might. Both Leo and Saber Lily's jaws dropped as the blast faded as what was once Lancelot was now fading away as a shadow. The beach beauty then turned to them with a smile on her face as she walked over to Leo and kissed him on the cheek.

"Let's go, beloved and other me...," the girl said as she held the blonde haired boy picked up Merlin. "We need to treat Merlin's wounds before Arteries sends someone else to kill us."

Leo glanced over at Archer with a hopeful smile. "Does that mean you're joining us?"

The King of the Beach nodded as she turned to her other self. "Definitely. That monster has to pay for making me do that to poor Lancelot and for making him fight is in the first place. Someone has to put him in his place!"

                               XXXXXX

Elsewhere, now sitting on a black throne, Arteries chuckled as he looked at an shadowy image of the battle as it ended. It seemed his plan of sending Lancelot to test the two uncorrupted versions of the former king abilities worked perfectly. He now knew exactly what both where capable of now. Sure both were worthy of being heroic spirits, but they fell short to the powers of the ones he had under his control.

The Demon King laughed as he begun to think of who he would send next to eliminate his enemies next. Little did he know....when he summoned the Spirits of Camelot, he accidentally summoned one person he never seen before. One with a fire in her heart unlike any other.