Ok, for those who want to know how powerful he is. Well, this world is a combined mixture of The Irregular at Magic High School and Engage kiss. Actually, mostly Irregular magic high school.
Though some characters of course are going to be thrown here from other anime's, but their "world" concept is never introduced.
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Leon saw the demon in the stadium, he quickly imagined a barraged of guns appear before him. Piercing the demons body, he then made a machine gun appear.
Giving Sharon supressive fire, as she dashed at the other demons, her fist making one be thrown to the wall, crashing hard.
She appeared before it and squashed it's head with her fist. She was physically strong, she then gave a back spin kick. As one tried to get close to her, sending it crashing. Breaking through a wall, Leon smiled as he opened his arms.
"A bit of a show!"
He then made rocks appear around a giant monster a B-rank demon. They all then glowed, as they exploded.
It screeched and it was blown half his body, but it can still move. It rushed at Leon, who quickly took his hands out of his pockets, he imagined.
His power was his imagination, but he also trained physically. His right arm became the hardened into a ball spike. Which he slammed against the monsters side, who tried to defend it, Leon's arm turned normal but he made it where he left spikes in the demon's flesh.
"And wallah!"
*Woosh*
The spikes became enlarged and pierced it's body, making the spikes appear all over the demon's body. Killing it in the process, as couple spikes penetrated from within to it's eyeball.
Leon saw some remaining demons, seeing them come towards him. With some being dog like demons. He snapped his finger, and earth spikes appeared piercing them from underneath.
Sharon slammed both demon's head against each other. Exploding them on action, she quickly hurled one body to another demon. Appearing behind it and punching through it's chest. Then swiping up cutting it in half.
Then out of nowhere a giant demon appeared, then he saw a figure appear from the ground.
"Kisara?"
He wasn't surprised, he expected for her to follow him from time to time, or just pretty much 24/7. She looked at him a joyous smile appeared on her face.
"Leon!"
She blocked the burly demon with a sword, with her own sword. She had transformed, she had silky long pink hair where she ties a ribbon on her right side and red eyes. But she was in her devil form black dress along with black gloves that has cross ends in her right hand. She also wear black stockings with cross ends, and a long red ribbon dangles from her neck. She obtains a devil-like wing, a black horn with a pink gradient and carries a black-pinkish devil sword.
Kisara usually wore her school uniform, even though she was like decades old. She went to school currently, now he saw her glare at the demon.
"Hands off Leon!"
She slashed forward, but it was now so weak. She gritted her teeth, slash at his leg, only to tank it. Sharon was busy killing others off.
*Clank* Clank*
Leon had seen her do good, slashing the demon a couple times, but the burly demon was strong. Not to be underestimated, he remembered of this scene, where it was more troublesome.
But, he knew the way to make her stronger. As, she then was hit by the side of the sword, she grunted feeling her self launched to the ground. Her sword falling down, she felt a trickle of blood leaving her nose. Quickly she got up and grabbed her sword.
Re-launching another barrage of attacks.
*Swoosh*
*thud*
It's arm was slash off, but it then kicked Kisara hard. Leon caught her, as she looked at him weakly.
"Sorry Leon...."
She felt bad for being this weak, Leon smiled and patted her head. Making her worries fade away.
"it's fine, want to become strong?"
Her eyes brightened as she knew what he meant, it was something he done with her the third day they met. They made a pact, as he kissed her, she got energy and strength from him. He helped her uncover what she can really do, if she exchanges blood, but also do intimate acts. She can grow stronger, she was excited.
She didn't say a word, she instantly kissed him, she then let go and re-attacked again. Devouring his lips, she bit his tongue softly. She was lustful, feeling the hunger for his lips and hoping to have sex.
She was replenishing her strength. Sharon watched this while killing the last demon on her side off. Her eyes became dark, instantly her mood soured and a dark aura surrounded her. As, the demon's head in her hand was crushed.
"Go show that demon."
"yes!"
She happily replied and hopped off his arms. Her eyes glowed and quickly she overpowered the demon with ease.
Leon way of helping her was this way. He wanted her to grow stronger.
"I did it!"
He patted her head, as she hummed in delight like a puppy wagging her tail. She was loyal to him, loving him to the extremes ever since that day.
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"Hands off him, you skank!"
Kisara shouted at Sharon who glared at her. She clenched her fist ready to pummel Kisara. Who also was in her devil form.
"I'll kill you! I should've kill you before you were discovered."
"I'll kill you first! Leon-kun is mine!"
They were ready to kill each other off. Leon shook his head, such thing was like a daily occurrence if he was going to keep his peace and growing harem. Filled with devoted, obsessive and possessive girls. Who would kill each other if the opportunity arose.
"Enough both of you."
His tone was calm but it carried authority. As they both froze, looking at him. he gestured to come closer with his fingers.
"Come."
They listened, they never saw this side of him being serious. Becoming nervous, they obeyed and when they got close he slapped both of their asses.
"Ah~!"
They moaned, he was going to punish them, and make them accept each other's presence. He was going to start with these 2 and then start with his sisters.
He already had a plan going on.
He picked both of them up and put him on his shoulders.