https://youtu.be/BOs2L-B4_TY

Kise: HOLY SHIT!!!!

Kise abruptly awoke, shooting up from a laying position. He looked around, seeing that he was back in his room.

Kise: I... I'm in my room?

The teen was confused, as the last thing he remembered was accepting yes to what seemed to be a game screen before he blacked out.

And then immediately after he remembered he was ran through by a spear.

Kise: 'I'M ALIVE?!!!'

He swiftly checked where he was stabbed, but found there was no wound. Not even a scar.

Kise: What... In the fucking world? I don't even feel any pain.

Kise looked upwards, and right as he did, the door swung open.

???: Kise!!

He saw that it was actually Issei who opened the door, as unlike usual, she actually seemed to be concerned.

Kise: Issei?

She placed a plate of food down, before immediately going over to inspect his body.

Issei: You don't look injured. And you seem like your normal self.

Kise: O_O Who are you, and what have you done to my cold blooded sister?

Issei: Say another word before I'm done, and it'll be a repeat of two days ago.

Kise: *Gulp* AAAAAND she's back.

She finished her inspection, before coming to one final conclusion.

Issei: 'There's no way he should be alive by human logic.'

Kise: L-Listen, I'm fine with you SEEMINGLY being kinda concerned here sis... But I still need a minute to understand what the hell happened to me last night.

Issei: Well... I think I can explain. You were attacked by someone with jet black wings right?

Kise's eyes went wide hearing this.

Issei: Looks like I have my answer.

Kise: H-How do you...?

Issei: Because, those shitty crows have been coming after me for 3 years straight now. They're called Fallen Angels.

Kise: O_O Fallen WHAT now?

Issei: Did I stutter? They're exactly what they sound like.

Kise: ... Ohhhh shit...

Issei: Yeah. And not only was one going to kill you, but you were about to be taken in by greedy fucking Devils too.

Kise: S-So... The whole trifecta would be real then?

Issei: That's not even half of it. Things you would read in a comic book or manga are real too. Angels and Devils are just the start.

Kise was in utter disbelief hearing this.

Kise: You... You said I was going to be taken in by Devils?

Issei: Yes. Greedy ones that want power. They've been trying to get me to join them forever now. I don't even know why they would bother gunning for you.

Kise began to think to himself, but as he did, he could feel his thought process was different.

Kise: How would they even get me when I'm dead?

Issei: They have a reincarnation system. Devils can turn humans into Devils if they're alive and accept it, or if they're dead.

Kise: 'So by that logic...'

Kise thought back, thinking of one slight possibility.

Kise: So, I'm gonna guess Magic and stuff is real too.

Issei: No shit Sherlock.

Kise: -_- 'So if someone would be able to sense magic, namely Issei... Then those things may have actually tried to ambush HER.'

Issei: Looks like you're taking this surprisingly well. But the question still stands...

Issei deadpanned, getting up in Kise's face.

Issei: -_- How in the world did a weakling like you manage to live after taking a seemingly fatal blow from a Fallen Angel?

Kise: -_- Oh wow, thanks for the confidence twin of mine.

Issei: Ugh, whatever. All this means is now we both have targets on our backs. And you're not gonna be late to any more training sessions.

Kise: Yeah fine.

Issei: Breakfast is right there. We're already late to school so might as well take the day.

Issei got up, leaving the room without a word.

Kise: ... So I guess only I can see this.

[You have an Unread Message]

Kise: It's almost like a video game. So... Open message box.

It was then the screen changed.

Kise: It's like I've been turned into a literal game character.

[You've become a Player.]
[Daily Quest: Strength Training has arrived.]

Kise: 'Ugh, more strength training? It's not like I don't already get abused by Issei enough.'

[The system is designed to assist the development of the player.]

[Failure to comply with the system may result in a penalty.]

[Rewards have been delivered.]

Kise: O_O If the penalties are anything half as bad as what Issei can do to me, then it might be to smart choice to start today. Accept Quest.

A new page opened up, revealing a training regiment for the day.

GOAL
Push-ups: 0/100
Sit-ups: 0/100
Squats: 0/100
Running: 0/10km

Kise: ..... Is this the REAL reason Saitama was so strong after just doing that?

Kise grabbed his plate of food, ate, before changing into workout clothes and leaving his room.

Kise: Issei, I'm going for a run.

Issei: Finally realize that being my punching bag isn't good enough training.

Kise: -_- Piss off.

He closed the door, before he began to run.

Unbeknownst to Kise however, he had dodged a bullet in starting the training right away.

???: God damnit, I wanted him to fuck around and find out so he could be sent to the desert!

???2: You think that he wasn't going to get on it when he realized that there would've been a penalty? It would've worked if he was tired.

???3: Well, at least he won't be a complete waste of space if he's this diligent. We seem to have also given this system to a gamer.

TIME SKIP!!

Kise: *Pant* *Pant* Man, this is pretty sweet.

5 days had passed since Kise had become a "Player". Like the nerd he was, he started to explore more of the system he was blessed with. He had just finished the daily quest, having the option of 3 rewards.

Kise: Full Recovery.

First, immediately recovery from the fatigue of training, and fully restoration in general.

Then, a random loot box.

And just like any fighting game character, he had stats.

Name: Kise Hyoudou
Race: Human
Job: None
Title: None
Level: 1

HP: 100/100
MP: 10/10
Fatigue: 0

Strength: 32
Agility: 20
Vitality: 10
Sense: 10
Intelligence: 10

Available Points: 3

Kise: 'Even if I look unimpressive, Issei's constant training/abuse every day made my Strength and Agility Stats double than my others when I started out.'

He looked at the three points he had, and then the only stat he DID invest in so far.

Kise: Buff Boi time.

With a simple thought, he transferred the three available points he had into strength.

Kise: I'll worry about the rest once I start leveling up.

Once on his way to school, he opened up the loot box, revealing a Key.

Kise: So, this time it's a key. Better than most I've gotten.

He read the item, surprised.

[A key that can be used for teleporting to an instance dungeon. It can be used at the back of Kuoh Academy.]

Kise: Instant Dungeon huh? Must be a way for me to get stronger and actually level up.

Issei: -_- Should I be worried that you're talking to yourself or?

Kise quickly turned, finding Issei standing over him.

Kise: O_O Uhhhh... It'd sound like nonsense if I tried to explain it to you?

Issei: Welp, now people will think you're a perv, AND a weirdo.

Kise: Those are false accusations and you know it!!!

Issei: Yeah sure. Anyway I'm heading off.

Issei had gone to school, and while she walked, Issei noticed that her twin seemed to stand the slightest bit taller.

Issei: '... Did Kise grow?'

MANY HOURS LATER

Kise: God this day took fucking forever!

Kise had arrived at the back of Kuoh Academy. He pulled out the key, before the image of Yuma, or the Fallen Angel appeared in his mind.

Kise: ... Never again.

A keyhole appeared, before without hesitation, Kise unlocked it. Right then and there, a gate appeared, with electricity coming from it.

Kise: ... Let's go.

He entered the dungeon, with a notification soon telling him he had. Once he did, the entrance locked behind him.

Kise: -_- Well shit.

[You cannot exit the dungeon.
You must either defeat the boss or use a teleportation stone.]

Kise: Yeah, should've seen that one coming.

He went further down now within the school basement. As Kise arrived down, three Goblin's spawned out of nowhere.

Kise: WOAH!! Definitely monsters!

He held his hand out, before making use of an Inventory, pulling out a machete. The Goblin's then charged at him, with Kise surprising himself with how calm he was in the situation.

Kise: 'Is it because I go up against Issei all the time? Or because I nearly died before? Whatever it is...'

Kise as well moved forward, with his eyes glowing.

Kise: 'They don't scare me at all.'

He dodged a stab from the first Goblin, before seeing an opening. Without any hesitation, he struck, before slicing the Goblin's head clean off.

Kise: 'I am a lot stronger.'

The other two Goblin's came to attack as well, but in a burst of speed, Kise was able to stab and kill the both of them as well.

Kise: It was... So easy too.

Before he could relax, he heard a crash, with something coming through the wall. He dodged out of the way, ducking under a red haired wolf, with a steel jaw.

STEEL FANGED LYCAN!!!

Kise: Ah shit, that's stronger than a Goblin.

The wolf tried to attack again, but with high agility, Kise managed to move out of the way, only getting a small cut.

Kise: But...

Kise moved forward once again, seemingly not even thinking of the possibility of death.

Kise: I'll be damned before I die against something that probably appears in droves.

He flipped over the wolf as it tried to bite him again, before cutting it directly in half.

Kise: Get on my level.

[You have defeated a Steel-Fanged Lycan]

Level Up!

The cuts began to heal on Kise.

Kise: Leveling up works like that too huh?

He saw more Lycan appearing, smirking.

Kise: ... I don't know exactly how far ahead you climbed in that three years... But I'll shave the time down faster than you can blink. Wait for me, Issei.

Kise charged in, ready to fight with all his might.

TIME SKIP!!

Hours had passed, as Kise had been killing any beast he found within the Dungeon.

And from his excessive killing of the Lycan wolves, he gained a Title with benefits.

Title: Wolf Assassin
Animal Type Monsters: All Abilities +40%.

AND, ridiculous rise in level.

Kise: Okay, this machete isn't gonna last much longer. Probably should head for the boss.

Kise: 'So the text color changes depending on an enemies strength. Red for powerful, orange for my level, white for weakling.'

He descended down while killing more monsters.

Kise: Also, all my stats increase by 1 every level up.

Once getting down to the lowest level of Kuoh, Kise was immediately attacked.

Kise: AH SHIT-

He blocked with the machete, but was sent flying back, as the weapon broke.

Kise: Oh come on!! I really liked that thing too!!

The monster revealed itself, impressing Kise.

Kise: This won't be the easiest thing.

King of the Swamp:
BLUE VENOM-FANGED KASAKA!!

Not only was it massive, but it's scales seemed to be as tough as any piece of modern armor.

Kise: Okay, so no weapons. If you're the boss of this place...

Kise stood up, cracking his knuckles.

Kise: I guess it's time to throw hands.

The serpent lunged to attack Kise, as he quickly stepped to the side. Not seeing the need to find any kind of opening, Kise punched the side of the serpent hard, with enough force to send it a small distance back. Though he did, he wasn't able to dodge a tail smack, sending him into a wall, and then through it

Kise: ARGHHH!!!

Kise looked up, still raring to go.

Kise: 'What am I? A psychopathic masochist? Any normal person would stay down after hits like that, or even seeing that thing in general.'

He leaped forward, going to punch the snake right in the nose. As he did, he got on top of it, running along it's body.

Kise: 'Maybe it's adrenaline, or a high from all this new strength.'

Kise axe kicked the body, before being sent flying off as well.

Kise: 'Or maybe, after every beat down Issei gave me, I know her strength more than I thought. And compared to her, this thing is nothing.'

Kise got back up, side stepping a tail attack again, and then figuring out something else. He grabbed the tail of the snake, before putting enough pressure to make blood spew from it, before swinging the beast around by its tail.

Kise: I'VE PUT STAT POINTS INTO STRENGTH FOR A REASON LIKE THIS!!!!

The walls began to shake from each impact, before Kise arrived at its head, to choke the life out of it, also getting it's blood on him as well.

Kise: ... I guess I'm not quite the weakling I was before, huh universe?

[You have defeated the King of the Swamp,
The Blue Venom-Fanged Kasaka].

Level Up!
Level Up!
Level Up!

A new weapon appeared in Kise's hand.

Kise: I see. This'll be helpful.

He looked to the side, seeing another item as well.

Kise: THIS, on the other hand, is a dangerous game I'd be playing.

He put the item away, before stretching.

[You have defeated the Boss. The Dungeon will now be restored to its original state.]

As the system said, the dungeon began to revert, as Kise had now gotten above ground from the fight, being at the regular Kuoh Academy.

Kise: Wicked.

Kise noticed how late it had gotten, finding that it was dark.

Kise: *Sigh* Issei is gonna have a field day with me on this one.

???: She isn't the only one.

Kise jolted up, turning around, and finding a student from the school he knew all too well.

Kise: -_- Oh, it's you Sona.

SONA "DEM THIGHS" "SHITORI"

Sona: Hyoudou, what reason could you possibly have to been on school grounds this late?

Kise: Uhhhhh-

???: You forgot your favorite pencil.

Kise: I forgot my favorite pencil.

Truth be told, Kise didn't hear the voice that spoke, but something in his mind did.

Sona: A pencil.

Kise: Yep.

Sona: And you came back for it... At 6pm?

Kise: I did say it was my favorite.

Sona: ... Yeah okay.

Kise: 'HOLY SHIT SHE BOUGHT IT!!!'

Sona: Next time, notify someone you're here. And on top of that, you've missed school for a while now. And it's looking like you're perfectly able to attend.

Kise: Sorry, it was just some personal business before. I'll be able to attend class normally soon.

Sona: Hmph. You best. Remember to make up your missing assignments then.

Kise: Gotcha, I'll be off.

Kise then began to walk away.

Sona: Wait.

Kise: Eh?

Sona: Did you get taller?

Kise: Huh?

Sona: ... You know what? Never mind.

Kise shrugged, before continuing to walk away. However, Sona was indeed right in the assumption, as Kise's had actually grown an entire inch.

Sona: '... Maybe it's male puberty? However...'

She also noticed his ruined clothes.

Sona: That doesn't explain why he looks a mess either. Something is odd about Kise Hyoudou.

While walking back home, Kise stopped by the water fountain once more.

Kise: ... This place again. It feels like it's been forever, even though it's only been days.

After a moment, something in the back of his mind told him to be weary.

Kise: '... My sense stat?'

He turned around, as the sky distorted. Then a Fallen Angel in a cloak descended.

???: Well this really is unfortunate. Me running into you that is. Out of all the people that you could encounter. I do have a question though.

Kise stood poised, feeling different from before.

Kise: '... This really is different from the last time.'

He looked at the Fallen Angel, completely calm.

Kise: 'I... I don't fear for my life.'

???: Can't move? Figures. Raynare must've left an impression on you the last time.

Kise: Raynare?

???: Well it doesn't matter. I'll simply have to finish the job.

The Fallen Angel created a blue spear of light, before throwing it at Kise.

Kise: 'It's... Slow.'

Kise rose a hand, before catching the spear of light without a problem.

???: What?!!

Kise: Looks like you've made a miscalculation.

Kise crushed the spear, looking at the Fallen Angel.

Kise: You assumed that I was the same person who died before, right?

Kise summoned Kasaka's Dagger, ready to go on the offensive.

Kise: That was a big mistake.

https://youtu.be/CRZsOOOvg1I

CHAPTER END!!