(Intro)

https://youtu.be/sME8zEufcOQ

(Two days later...)

The president and the members of the Occult Research Club arrived at a big mansion located on top of the hill where they will all train for the Rating Game.

Asia: Wow! This place looks lovely!

Rias: All right. Let's get inside and start training right away. 

Issei: Training?! Just as I thought, you're a monster, President!

Rias turns around and looks at Issei.

Rias: *smiles* No, I'm a demon.

(Small Timeskip by another DxD meme)

(Boy's Bedroom)

The male members of the club unpacked their bags and started changing into their training outfits.

Issei: Hey, Kiba. Back when we fought at that church, you said something about hating fallen angels and priests.

Y/N: *looks at Issei* Kiba said that?

Issei: Yeah, he told me that before we entered that church.

Toshiaki: Kiba hates fallen angels, too...?

Kiba: Just like how she saved you and Asia, the president also helped us. That's why we have to win this game for her. *looks at them* Right?

Y/N: Kiba...

Issei: Yeah, of course!

(Later...)

(Blade/Garren)

We now see Blade slashing at Garren with his Blay Rouzer while Garren kept blocking and evading Blade's attack and was shooting him at the same time but Blade evaded Garren's shots.

Garren: What's wrong, Kenzaki? Is that all you got to beat your senpai?

Blade smirks under the helmet.

Blade: I'm just getting started.

Blade and Garren opened their fan card decks from the Rouzers, pull their two category cards of Spade and Diamond, and then they slide it on their Rouzer.

Garren: Let's try this out.

BULLET! FIRE! GEMINI!

BURNING ASSAULT!

Garren points his Garren Rouzer at Blade as he splits himself into two and then shoots at Blade with a powerful blast making Blade roll to the ground.

Blade: Argh...! What's with that move? Is that your new finishing combo move?

Garren: Yeah, it is. I haven't tried it out yet, so this is actually my first time.

Blade stand up.

Blade: All right! It's my turn!

BEAT! THUNDER! MACH!

LIGHTNING IMPACT!

Blade throws his Blay Rouzer away and then his right-hand charges up with blue lightning.

Blade: Take this!

Blade charged towards Garren with his speed, sends him a powerful lightning punch to Garren, and then he was sent flying to the true and falls to the ground.

Blade: I guess this is my win, huh?

Blade and Garren pulled the levers on their buckles and deactivated their transformation as Y/N walks up to Toshiaki and gives him a hand to help him stand up.

Y/N: Are you all right, Tachibana-san?

Toshiaki: Yeah, I am fine. It looks like you're getting stronger, Kenzaki. Keep up the good work.

Y/N: *smiles* Thank you, Tachibana-san.

Toshiaki: Let me give you a piece of advice, Kenzaki. We are here to train and learn how to use our cards properly and wisely. We'll only use the cards to finish off the enemy.

Y/N: Hm? Why?

Toshiaki: Have you seen the number 5000 on your weapon?

Y/N: Y-Yeah, I've seen it on the side of my sword.

Toshiaki: That's the total of points you have on your weapon. It means you only have 5000 points to use the Undead cards every time you transform.

Y/N: Eh?! There's such thing?! I didn't know that...

Toshiaki: *sweatdrops* You didn't know about it...?

Y/N: Then, what happens if I finished all of the points I used?

Toshiaki: That means you can't use the cards anymore. You're gonna have to finish off the enemy with brute force instead.

Y/N: Man, I'm glad you told me about that right away before the Rating Game...

Toshiaki: Anyway, we need to keep training and create new combinations with the Undead cards before the Rating Game. Let's do our best, okay?

Y/N: Yes, Tachibana-san!

Toshiaki: All right. Let's head back inside and have lunch.

Y/N: Oh! Finally, lunch! 

Then Y/N and Toshiaki went back to the mansion and have their lunch. While they were walking back inside the mansion, a man wearing a brown cloak watching them behind the trees in the forest.

???: So that's Blade and Garren, huh? I didn't expect those two would show up and summon their belts at this time... Looks like God has finally chosen them to be his champions... But...

The man in a brown cloak pulls out... his Heart Ace Card.

???: They need to prove if they are strong enough to beat me... I need to prove myself that I'm strong enough to protect someone who is special to me... I'm not going to save humans... The only one I'm going to protect... is her.

After the man says his last words, a portal appeared behind him, turns around, walks into it, and then he disappears.

(Small Timeskip)

Everyone was in the dining hall having dinner together. Y/N and Toshiaki were a bit surprised because... there's more food on the table than they expected.

Y/N: *sweatdrops* Hey, Issei... Why is there so much food on the table...?

Toshiaki: And isn't this going to be a waste if we can't finish it...?

Issei: *sweatdrops* It's a long story...

Koneko: You're perverted best friend found his new power.

Y/N: What do you... Oh, I see. Now I know.

Toshiaki: Well, at least we have enough food to eat to build up our energy for the Rating Game.

Y/N: *looks at Issei* Hey, Issei. Have you increased your Sacred Gear, yet?

Issei: I think so. I feel like I'm getting stronger now.

Rias: ... *looks at Issei* Hey, Issei, why don't you and Kenzaki-kun train together tomorrow?

Issei: ...

Y/N: ... *looks at Rias* Hey, Rias-senpai. I don't think this is a-

Issei: *looks at Y/N* That's fine by me!

Y/N: *looks at Issei* Huh?!

Issei: Just accept the challenge, Kenzaki! You don't know how long I wanted to beat you up so badly! Now, this is finally my chance to punch you after a long time!

Y/N: ... Fine. If that's what you want, then so be it.

Issei: *points at Y/N* You better not chicken out of the fight, Kenzaki!

Y/N: That goes for you, too!

Rias: *sighs* Will those two ever get along...?

Akeno: *giggles* Who knows?

Koneko: If it's Kenzaki-senpai, I know he can handle it.

(Timeskip by another meme)

It was now night time. That means everyone was already asleep. Currently, Y/N was now walking out of the bathroom after he has taken a dump on the toilet. But as he was walking out, he saw Rias and Issei on the hallway looking at each other as they both noticed Y/N walking out of the bathroom.

Rias: Kenzaki-kun?

Issei: Kenzaki?

Y/N: Rias-senpai? Issei? What are you guys doing out here at this hour?

Rias: *smiles* Perfect timing, Issei, Kenzaki-kun. Let's all have a talk outside, shall we?

Y/N: Eh...?

(Later...)

Y/N, Issei, and Rias were now out in the garden alone sitting on the bench together.

Issei: Is that about war strategy?

Rias: Yes, but to be honest, playing by the book only offers a bit of consolation.  

Y/N: Come on, that can't be true. You've been working hard at this late night. 

Rias: But this time we're up against Phenex. I'm sure you both heard of it. A sacred beast said to be an immortal bird. Although they're demons, his family shares the name with this sacred beast. On top of that, they're the Great Marquis family, considered elite even among the 72 Keys. He also shares the sacred beast's: immortality. 

Issei: Immortality? Is that even possible? 

Rias: Well, he's pretty much invincible. Even if you hurt him, he'll regenerate instantly. His game record shows eight wins and two losses. However, these two losses were against an allied family. He lost on purpose. 

Y/N: On purpose...?

Rias: After the Rating Game became prevalent, the Phenex house rose to prominence extremely fast. It's natural, right? Being immortal, he simply can't lose.

Issei: I'm sorry...

Rias: What for?

Issei: I spoke up against Riser back then, forcing you into this fight. 

Y/N: Well, I guess I should apologize too since I went too far with him and his peerage back then.

Rias: Actually, that was rather helpful. We could cut to the chase afterward. My father set up this game in advance, knowing I will probably lose. It's a trap. In chess terms, a swindle. 

Issei: Um, why are you so opposed to the engagement?

Y/N: That's right, Rias-senpai. Why are you against it in the first place?

Rias: ... I'm the daughter of the Gremory house. I'm never treated as an individual. I'm always Rias Gremory. The name Gremory follows me everywhere. Although I am proud of my house, when it comes to finding a life partner, I want someone who loves me. Not as the daughter of the Gremory house, but as Rias. They may be conflicting ideals, but I still hold on to this small dream. 

Y/N: ... Then make your dream come true.

Rias: *looks at Y/N* What?

Y/N: If your family is still against about your dream, then keep fighting back. Because if you keep fighting and get back on your feet, then your dream will come true. Just like I always dream to become this city's Kamen Rider. And I made that dream come true. You know what I mean, right?

Rias: Kenzaki-kun...

Issei: That's right! I'd love you regardless of rank and name. I don't know anything about your family or the social hierarchy of demons. But we can see you right here, right now, and Rias-senpai, you're my number one! You're our number one!

Rias: ...

Issei: D-Did I say something strange?

Rias: ...*smiles* Not at all. Anyway, let's try to win this battle.

Issei: A while back, Kiba told me people call you the Ruin Princess because you're a genius of that magnitude. And now your first battle is against that guy... 

Rias: You're wrong. My powers are not a natural boon, but something cultivated by the Gremory house of many generations. They belong to both me and the Gremory household. That's why I won't lose. If I'm fighting, I will win. I must win.

Issei: You're amazing, just as I thought. Compared to that... I suck. 

Y/N: Issei...

Issei: Being here makes me constantly realize I'm the most useless. I couldn't even catch up to Kenzaki or Tachibana-senpai. Even if I possess a great Sacred Gear, it's wasted on me. Despite that, I always foolishly rush forward. In the end, I'm always causing you problems. I'm... I'm... I'm completely useless!

Rias: ...

Rias slowly walks up to Issei and hugs him.

Rias: You want confidence, don't you, Issei? Okay, I'll give you more confidence.

Issei: President...

Rias: That's right. So, you should try to calm your mind and body for now. I'll stay next to you until you fall asleep. 

Issei was speechless as he was starting to cry while hugging Rias.

Rias: Don't worry, Issei. I will definitely instill you with confidence.

Y/N: Issei... Rias-senpai...

(Next Day)

Rias: Use your Boosted Gear, Issei. 

Issei: Eh? But you said I shouldn't use it during this camp.

Rias: Without my permission, I meant. *looks at Y/N* Kenzaki-kun, can you still be his opponent?

Y/N: Yeah.

Y/N pulls out his Blay Buckle as he inserts his Spade Ace card into his buckle and attaches it around his waist.

Y/N: Henshin!

Y/N pulls the lever on his buckle.

TURN UP!

https://youtu.be/tNgoc4uON9c

Blade: I won't go easy on you, Issei!

Issei: That's what I like to hear, Kenzaki! Boosted Gear!

Issei summons the Red Dragon Emperor gauntlet.

Boost!

Rias: Try again.

Issei: Boost!

Boost!

Rias: Once more!

Issei: Boost!

Boost!

Rias: Still not enough! 

Issei: Boost!

Boost!

Rias: One more time!

Issei: Boost!

Boost!

Rias: Try harder!

Issei: Boost! Boost! Boost!

Boost! Boost! Boost!

Akeno: He powered up twelve times.

Rias: Stop. Issei, do you see now? You wouldn't have been able to handle so many boosts before this camp. That's the result of your training. 

Issei: I see!

Rias: Then... Begin!

Issei: Let's go, Boosted Gear!

Explosion!

Issei then felt incredible energy flowing in his body.

Asia: What is that?

Rias: It allows Issei to fight with the accumulated power for some time. *looks at Y/N* Kenzaki-kun, try to use a power move on Issei. 

Blade: You got it.

Blade opens a fan card deck on his Blay Rouzer, pulls out the Slash and Thunder cards from his card deck, and slides them on his Blay Rouzer.

THUNDER! SLASH!

LIGHTNING SLASH!

Blade's Blay Rouzer charges up with blue lightning and then he charged forward towards Issei for a finishing attack. As Blade got close to Issei and slashes him from above, Issei blocked Blade's attack on time with his gauntlet and he tries to kick Blade away making Blade move back away from him.

Rias: Issei, unleash your magic!

Issei points his gauntlet at Blade to blast him away, but his magic energy is still not enough to hit beat him.

Issei: Damn, it still fails...!

Blade then dashed towards Issei.

Rias: Shoot!

Blade: UUUUUEEEEHHHHH!!!

Issei: Onore...!!!

Issei's punch and Blade's sword clashed each other with their finishing moves, but Issei's punch hit Blade first making him roll on the ground and his powerful blast hit the mountain as it now creates a shockwave towards them.

Akeno: Ara ara~

Toshiaki: I don't believe it...

Koneko: The mountain...

Asia: ... was leveled to the ground...

Blade pulls the lever and deactivates his transformation.

Y/N: Amazing... Even I couldn't do that...

Issei: *looks at his gauntlet* This is my power...?

Issei felt exhausted and he lies down on the ground.

Rias: I guess he used up all of his energy. *looks at Kiba* Yuuto, how was he?

Kiba: I was really surprised. That single burst was equivalent to a high-class demon's attack. 

Rias: *looks at Issei* Issei, you will be a decisive factor in the game. Your attack power will greatly influence the flow of it. Believe in us and more than anything else, in yourself.

Issei: Believe in everyone... and myself...

Inner Rias: Issei...

(Flashback)

Issei: I'd love you regardless of rank and name. Rias-senpai, you're my number one!

(Flashback End)

Inner Rias: Issei... You...

To be continued

(Outro)

https://youtu.be/CebPvjuvY80