I created my own system

Those fifteen students had one thing in common when I saw their backgrounds.

Their characteristics were that of a key, so what exactly is a key, let me tell you.

50 years ago Nirvana was sealed away, by certain five individuals, and in order to free him the monastery needed to find the key.

Keys are no objects instead they are people, more specifically the descendants of the original five who made the seal. Since it was their power that created the seal, it was also their power that could remove it.

"Now everything makes sense, from the massacre of Hexzon Village to the destruction of the Elysium kingdom"

"They were hunting the descendants in order to free Nirvana"

[It makes all the reason why they are so desperate to get those kids]

"Yes because once they enter the academy it will be more difficult to get them"

[Even with their spies]

"Yes even with spies"

"Jeremiah refill the energy bank, I am going fast"

[On it]

Suddenly my body began to be energized with blue lightning and with its strength I zoomed through the city surprising the mages behind me.

"This spell is different from the one he used before" Tim said as he used a spell to increase his speed.

"It's no use our little sun is too fast we can't keep up" Sam said realizing any type of acceleration spell wouldn't be able to keep up with Apollo's speed.

"There is only one person who can keep up with Apollo"

Then a speeding figure almost blew the 71 mages away.

"Was that?!"

"Yup it's the strongest mage inside the tower, the head, Alger Thornvale"

A dense amount of blue mana coats around Alger's body as he tries to keep up with Apollo.

"What a troublesome spell" the old wizard could only say.

....

[30 seconds before the spell wore off]

I nodded knowing the duration of the spell was connected to my mana. Once the spell stops means my mana is dropped to zero. However, I had no choice I don't have any spells in my arsenal that can give this much boost in speed.

Soon I arrive at a small manor west of the city. It was desolate with no other houses near it.

As I drew closer I saw Sir Gavin fighting with twenty people, their outfits were the same as the ones I fought before.

"Why didn't he ask for help"

[Creator a jamming spell was cast around the manor, so no telepathic transmission can be sent]

"Tsk make sense"

[There is a barrier up ahead we need to break it before we can enter]

"Yeah I'm on it"

I put my hands together creating a dense amount of lightning then compressed it into a single point.

"Thunder aura, flash point"

A tiny dot of compressed lightning flew towards the invisible barrier making it tremble.

With the sudden tremor caused by the attack, all those inside the manor couldn't help but look and see a flash of light that completely destroyed the barrier.

"What's going on?" Alicia said as she used her body as a shield to protect the rest of her classmates from their assailants.

"Impossible!" Amitar one of the high priests of the monastery shouted as he saw how a barrier made by ten senior mages shattered like a fragile glass.

"Lady Alicia please fall back we will protect you," a battered knight said while ten more knights stood with him.

Behind their back was a room that the little girl tried to protect.

"Alicia" a girl began to sob from the inside of the room but the little girl named Alicia kept the door shut.

"Don't worry I won't die"

As she said those words lightning struck causing a loud roaring sound.

...

"Thunder aura, negative lightning"

Several strokes of lightning flash and every strike made bodies fall on the ground.

[20 seconds before the spell wore off]

Hearing those words made my body even lighter and zoomed across the lawn of the manor, there I saw Sir Gavin surrounded by twenty senior mages.

"Thunder aura, negative lightning"

A roaring sound echoed as lightning struck attacking twenty enemies.

"Apollo!"

"Yeah!"

Sir Gavin and I began to combine our attack, putting our hands together, fire and lightning began to mix.

"Blast up firebolt!"

A blazing inferno with charges of lightning blasts the twenty enemies. The subtle colors of red and orange soon devoured the enemy, while a series of crackling noises made by the lightning buried their screams. All that is left is the sound of thunder and falling rain.

[10 seconds before the spell wore off]

"Tsk!"

I clicked my tongue and gave Sir Gavin a wicked smile before flying away.

Since I was in a hurry, without hesitation I blew one of the manor's walls to easily get inside. However, the first thing I saw was a group of black-hooded priests.

"Great more enemies" I felt annoyed but I needed to deal with them.

"Thunder aura, negative lightning"

Three strokes of lightning dance across the manor while leaving black charcoal corpses. The scent of something burning lingers as I leave but it doesn't really matter.

A mix of fishy scent of blood and burns penetrated my nose as I blasted my way to the upper floors.

Finally, after so many turns, I saw a group of knights against a group of priests.

"Another one"

[Be careful creator your classmates are behind the door]

"Got it"

Facing the back of the enemy I made my move.

"Thunder aura, positive lightning!"

My presence soon was noticed making those priests look at me in horror but it was too late. I raised my fist and smashed the ground causing it to fall apart.

"Fall back!"

The knights upon realizing my intention immediately entered the room saving themselves from death. Although some priests tried to follow, I wouldn't let them be saved.

A blue lightning began to swallow the floor taking the enemies who were standing with it. Like thorns, the lightning began to bind my enemies.

"Damn it! I shouldn't die like this!" Amitar tried to cast a spell however the surging bolts made him paralyzed and soon burned him alive. His screams were soon replaced by the crackling sound of lightning. Then my nose yet again smells the scent of flesh being burned and the rusty fish-like scent of blood. I shook my head a bit trying to push any distractive thoughts away.

Floating mid-air I looked around and saw that I blew up half of the manor.

"I was just planning on destroying the floor"

A huge gap was made between the room and the ruined part of the manor.

"I should check on them"

I knocked and immediately the knight that I had seen a while ago opened it.

"Everyone is okay right?" I asked, immediately the knight nodded I was about to sigh in relief when I heard a notification.

[3 seconds before the spell wore off]

[2]

"Wait!" I panicked trying to hold onto something.

[1]

[0]

"POFF!"

My thunder aura disappeared along with my ability to fly.

"Don't let go of me!"

I said holding on to the knight's arms.

"Wait!"

He panicked as well surprised by turns of events.

"Hey, your hand is slipping!"

"It's because of the rain!"

While I shouted at the knight my eyes caught a glimpse of Grandpa he was standing in front of the manor while bodies lay beneath his feet.

It turns out I wasn't the only one who was hunting.

"Hey, I need help!" the knight shouted again.

My attention returned to him when I felt his grip on me began to loosen.

"Not good" I could only say

"If I fall I'll drag you with me" I threatened the knight.

By the way Jeremiah where's the energy bank?

Hey!

Buddy?

Why aren't you speaking?

"What's going on Hamir!"

A lady suddenly came out of the door despite the other knight's warning.

"Lady Alicia"

"Enough!" she shouted at them before approaching me.

"We kind of needed a hand" I tried to smile as I said this.

"Yean I noticed"

Then she grabbed my hand and pulled me up.

"!?"

[She's strong]

"Where were you, Jeremiah?"

[I was fixing something I'll show it to you later]

I clicked my tongue in disapproval but I soon composed myself when I was taken inside the room.

There, all eyes were on me.

"Your Apollo Lionheart right?" a brown-haired boy asked me. Instead of an answer a massive headache hit me.

"Ugh!" I groaned feeling the effects of mana depletion.

"I think he is tired"

A purple-haired girl spoke this time however, my vision was getting blurry so I wasn't able to see her clearly.

"I'm gonna sleep wake me later" I managed to say before succumbing to the tiredness I was feeling.

...

Outside the city, the forest of Vain.

The clouds light up due to the lighting while a roaring sound would come after it. The rain intensifies as if covering the bodies that cover the muddy ground of the forest.

While the storm continues a single individual can be seen sitting on top of a mountain of bodies.

He sits comfortably as if it were his throne however beside him, there is another person who was there. Wearing a black friar-like robe and hood his body floated motionless.

"It seems like your temple has become too desperate, Oswald. To think you would attack Sidus"

"Let's see the monastery has 12 temples no?"

"Since I captured you, the archbishop of the sixth temple that would at least cripple the monastery right?"

That individual chucked as he gazed at the paralyzed man floating in front of him.

"We...will...win"

"Nirvana...will.....return...emperor"

Lightning struck again and with its light, the individual's features began to be seen. A glimpse of a pair of emerald eyes and soaked blonde hair.

Augustus did not speak instead his eyes remained looking at his prey.

"Send more people if want to"

He made a hand motion and the man named Oswald drew closer to him.

"Because no matter the number, I will kill them all"