Issei's OP gaming system

Grand fight P2 end

(Took a break testing and stuff)
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When Issei flexed his Sharingan and looked at Serafall he tried to place her in a genjutsu but failed.

Issei: So I can't place people who are stronger than me in Magic into genjutsu's.

Serafall Dashed out to him unleashing many physical attacks fortified by magic.
"Something good about the Sharingan is that I can guess there next move with incredible accuracy." Issei told himself while dodging Serafall's every strike with ease.

Serafall: You tried to kill my sister!!!!!

Issei: No I didn't I just punched her, the fact that you haven't even landed a strike on me proves that I'm strong enough to keep up with you, so if I was trying to kill her I would've already done it.

Serafall: Shut up! Then why's she bleeding so much.

Issei: As I said I punched her I didn't expect it to do that much damage but I guess that doesn't matter seeing as your intent right now is to kill me nothing els.

Issei kept dodging Serafall's strikes and even Magic attacks for another 4 minutes; while this was happening the Other devil leaders were trying to locate the dimension Issei and Serafall were fighting in...

Sirzechs: Grayfia did we find them yet?

Grayfia: We've almost located them also the other devil leaders are in there way as we speak.

In the room where Sirzechs and Grayfia were many devils started appearing with magic circle's.

Sirzechs: lord phenex I presume you understand what's going on.

Lord phenex: Of course Serafall's unleashing her power and she seems to be using it.

5 minutes would pass and there were now a total of 20 high rankin go devils and 2 of the great faction leaders...

Grayfia: Sirzechs we've located them I'll open a magic circle to there area now!
~~~~~

Back with issei who was now actually fighting Serafall's...

Issei: Your strong but I'm faster!!!

Serafall: Ahhhhhh!!!!!

Issei had just slashed Serafall with Excalibur Rapidly but regardless of the slash Serafall kept fighting and even hit issei a couple of times; then out of nowhere Issei managed to Use Enhanced senses and Apex predator together, he unlocked a new ability called Superior Predator.

(Superior Predator= Makes user much more intimidating and gives him Enhanced physical attributes far beyond his original limitations for a temporary amount of time.

Strength: 7,000 to 16,000 for (10 minutes)

Issei: Ahh I feel more more stronger now, Issei using all of his speed flew right passes Serafall's defense and uppercut her so hard she lost balance and felt dizzy when she landed, and in this short period of time where she was dizzy Issei got many more hit into Serafall.

Issei even used some other skills such as paralysis, Poisonous fang and Sharpen claws on her Serafall's health dropped from [150,000-73,873]

Issei kept slashing at her with Excalibur as well Serafall was Paralyzed and couldn't do anything to stop issei or defend herself.

And with issei's immense speed and strength he was making quick work of Serafall who was still enraged.

Her health dropped once again From 73,873-3,981 and as issei was going to knock her out a magic circle started to appear.