No one's POV

Currently, Sora was standing in what look like a black void as he looked around and saw nothing.

Sora: Here again...

???: Big Brother...

Sora's eyes widened and he looked back and saw his beloved little sister, the one bearing a crimson hair just like Rias and violet eye as she looked at him.

Sora: Mio...

Mio: Why...? Why did you do it...?

Suddenly, he saw that he was in his Hero Costume and his eyes widened as he was holding his invisible sword, as it was stabbed towards her heart as she fell to the ground and Sora grabbed her lifeless body.

Sora: I'm sorry! It should've been me!

???: That's right! It should've been us! Don't worry, I can help you with that!

Sora then looked up and once again he saw his dark version as he was holding his sword and raised his hand to the air.

Fake Sora: Now it's time we reunite with her... And let this world burn...

The Fake Sora then slashed down towards Sora with his sword and he quickly woke up in cold sweat and looked around and saw that he was in his bed.

Sora: Again... That dream...

Sora then felt his face and felt that he had tears on his eyes and Draco started speaking.

Draco: Again...?

Sora: Yeah...

Sora then looked towards his scar hand and saw that he was trembling in fear, but just ignore it and saw that he was in a massive room as he looked around confused.

Sora: What the hell?

Rias then came in and saw that he was awake.

Rias: Ah good, you're awake. Come on, you're helping me make breakfast!

Sora: Uh... What happen to my room?

Rias: Oh, didn't I tell you? We just finish remodel it!

Sora: Huh?

Sora then went outside and saw that Issei's house was a big mansion and he looked completely shocked.

Sora: WHAT THE HECK!!!!

(Timeskip)

After they all ate breakfast, all of them started making their way towards school as he couldn't help but started thinking about Mio.

Sora(mind): I wish you were here.

Asia: Is something wrong, Big Brother?

Sora just smiled at her and shook his head.

Sora: Nah... Everything is fine...

Koneko: It's to early for you to be lost in thought...

Sora: That's harsh...

Rias: Come on, we can keep teasing Sora while walking up to school!

Sora: You're joking...?

Issei: Come on, Bro! We're gonna be late! And I want to hurry up and started seeing some naked bodies...

Issei had a perverted look and Koneko just hit him in the chest and he fell down holding his chest in pain as everyone just laugh.

Sora(mind): I wonder how you guys are doing? Basara? Maria? And the rest of you...

(Timeskip)

After school was over, everyone was currently at the ORC club room as they were all talking about Summer Break, but Sora was staring at the window as he was lost in thought.

Sora(mind): Why...? Why do I keep having dreams about her? I just can't let it go...

Gasper: You seem kind of out of it today. Are you alright?

Sora: All good!

Issei: Have you guys gotten any special plan for the break?

Kiba: We do! I can't forgot this is your first time with us, Sora, Issei.

Asia: What about you, Koneko? What are you going to do?

Koneko didn't say anything and she was looking down saddened and Sora notice that she hasn't touch her snack yet.

Sora(mind): Something's wrong here?

Rias: It looks like everyone is here.

Rias and Akeno then walked inside the club room and she told everyone the plan for the summer and both Sora and Issei looked surprised.

Issei: Going home to the Underworld?

Sora: Are you serious?

Rias: Well naturally. Summer is finally here, this is a yearly tradition. We'll all head to the Underworld tomorrow morning, it's going to be a long trip, so bring something to keep yourself occupied. Masters and servants must always be together, plus I got a group rate.

Asia: Going to the Underworld while still alive kinda makes me a bit nervous. But I wouldn't feel anything if I were already dead.

Xenovia: So then starting tomorrow morning, we're gonna spend are vacation in the same hell I once toss infidels into? Heh... That's Irony...

Sora: What about you, Azazel? What are your plans for the summer?

Everyone looked at Sora confused and Sora just point his hand towards Rias desk and everyone saw Azazel sitting there and they looked surprised.

Azazel: Well at least someone notice me, but I'll be going along as well.

Issei: Azazel?

Rias: When did you get in here?

Sora: He is the first one to come here. When we came in I already saw him sitting in your desk.

Azazel: Exactly! If all you didn't notice my presence until Sora point it out, then you all still got a lot of training left to do.

(Timeskip)

Currently, everyone was riding a train that's heading towards the Underworld.

Asia: I never expected to go to a hell on a train.

Sora: Me neither, I mean the last time I came here is by using a magic spell.

Akeno: Well this is a proper trip. And all new Devil should enter the Underworld through the appropriate channel.

Sora once again saw that Koneko hadn't touch her snack again, and he was getting even more worried.

Sora: Hey is something wrong? You haven't touch your lunch ever since this morning? If you're trouble with something then tell us...

Koneko just smile at him.

Koneko: Nothing. Nothing to worry about...

Everyone then heard an announcement saying that they will arrived at the Sitri Domain and Sona, Tsubaki, and Saji came in.

Saji: Yo! Sora! Issei!

Issei: Saji? Student council prez...

Rias: Good to see you, Sona.

Sona: Since you were kind enough to give us a ride on the Gremory tarin, I thought I see how you were before we got off.

Rias: Fine, if not a bit anxious.

Sona: Perfectly understandable. After all this is no ordinary trip home.

Saji: The both of you are up training in the Underworld too, right bros?

Both Sora and Issei looked confused.

Issei: Huh?

Sora: Training?

Xenovia : Up to now, we've only been told to accompany Rias on break.

Saji: Oh well, I'm about to go work my butt off. So the next time we meet up, I'll be a lot stronger than the both of you.

Sona: Saji, it's time to go!

Saji: Alright! See ya!

Sona then looked at Sora and smile at him.

Sona: Goodbye and good luck, Hero Sora!

Sora just rolled his eyes and smile at her.

Sora: You as well. See you again soon, Sona.

After they dropped Sona and her peerage at her Domain, they all took another hour before the announcement saying that they will soon arrived at the Gremory Domain.

Sora: About time!

Akene then got closer into Sora's face and looked out at the window.

Akeno: Just take a look!

Everyone then looked outside the window and saw a massive land and they looked completely shocked.

Xenovia: Wait! You mean all that land?!

Akeno: Yes. This all belong to the house of Gremory.

Issei: Really?!

Sora: It's freaking huge!

Kiba: If you were to compare it to Japan, they mainly the same size as their main island.

The Train suddenly come to a stopped and everyone looked confused.

Xenovia: Why did we stop?

Announcement: The Emergency break has been activated.

Akeno: How strange? I wonder why someone stopped the Train?

Akeno who tripped to the sudden stopped and she was on top of Sora with her boobs on his face and Sora just sweat drop.

Sora(mind): I'm just glad Maria is not here!

Azazel and Rias then came into the room.

Azazel: A few VIP will be gathering here soon. Maybe the stop was a precaution.

Issei: What Vip?

Azazel: Looks like we might be stuck here for awhile. I'm gonna take a peek.

Azazel then left everyone and Rias just sighed before smiling at everyone.

Rias: One of the representative of Asgard will be joining us for a conference.

Issei: What's an Ass Guard?

Sora: Asgard dude! Their the forces behind Norse Mythology. Asgard is the home of the Viking Gods, and there's Olympus from Greek Mythology, and the Legendary of Mount Merwe in Asia. It's more then just Angels, Devils, and Heroes.

Issei: Don't have to tell me twice. Was that guys who escape with Vali, Son Goku. That must mean, this conference we're going is about the Chaos Brigade.

Rias: That's right! Terrorist counter measure. Asgard and Heroes are joining our alliance.

Sora then looked surprised that Heroes will too.

Sora: Wait what?! Heroes too?

Rias: Yes! So you might see some of your friends later on.

Sora smile happily when he heard that the Heroes will also be joining the conference, before sensing some weird vibe, and suddenly everyone was thrown out of the train and onto the ground.

Sora: What the hell?! Where are we?

Issei: Force teleportation?

Asia: Where is Rias?

Sora: Azazel is gone too!

Suddenly, they felt an earthquake and a presence of someone walking and suddenly, a massive Dragon appear behind a giant rock and everyone looked completely shocked.

Issei: A Dragon!!

The Dragon then let out a massive roar before firing a massive fire breath at everyone, and Sora grabbed Asia and moved away along with everyone.

Kiba: So I'm going to assume this guy isn't friendly!

Sora: You think so?!

Kiba and Xenovia then summoned their swords, with Kiba's Sword of Betrayer and Xenovia's Durandal, and Issei summoned his Boosted Gear, and Sora summoned his Accel Gear, but he didn't summoned his Invisible Sword, which confused everyone a bit.

Issei: Why are you not using your sword?

Sora: Nothing to worry about...

Koneko then recklessly went after the Dragon all on her own and everyone looked surprised.

Sora: Koneko!!

Akeno: Watch out!

Koneko went to punched the Dragon, but the Dragon just slammed it's tail and sent Koneko flying to one off the mountains and she had blood on her face.

Gasper: Koneko!!

Sora: Everyone! Please cover me! I have a plan!

Everyone: You got it!

Akeno then summoned her Kimono.

Akeno: Since, Rias isn't here, it's my duty to take the lead! Kiba, Xenovia, do whatever you can to distract the Dragon! Issei, focus on activating your Sacred Gear! Asia, protect Koneko! Our role is to buy enough time for Sora to make his move!

Everyone: You got it, Akeno!

Everyone started defending and hold of the Dragon, and Sora rushed in with a Rasengan on his hand, but it was easily nullify by the Dragon, and the Dragon slammed his hand towards Sora and slammed him towards the ground.

Everyone: Sora!!

Sora: Don't worry! It's part of the Plan!

Sora then disappeared and it turns out to be a clone and everyone looked surprised that Sora already activated Draco's Third Gear, and the real Sora managed to grabbed it's tail and lift the Dragon and slammed it to the ground and everyone looked completely shocked.

Gasper: Whoa!!

Asia: Amazing...!

Issei: He just lift that Dragon like it was nothing!

Sora: Multi Shadow Clone!!!

Sora then summoned multiple clones.

Sora: Let's go!

Sora and his clone started rushing towards the Dragon, and the Dragon let out a massive roar, and all the Sora started using a Rasengan on their hands and they all jumped towards the Dragon.

Sora's: Rasengan Super Barrage!

The dragon then slammed it's hand and destroy some of the clones and went to get up.

Akeno: Issei! Attack it's leg!

Issei: You got it!

Akeno then sent a Lightning Blast towards one of it's leg, and

Issei sent a Dragon Shot towards the other leg causing the Dragon to fall down and everyone looked at Sora.

Everyone: GO!!

Sora: Here, take this!

All the Sora continued to rushed forwards and the Rasengan in their hands started to grow in size into a massive ball of wind and everyone looked completely shocked at what their witnessing,

even the Dragon looked amaze by what he was seeing.

Sora: Take this! Massive Rasengan Barrage!

Sora then hit the Dragon with multiple Giant Rasengan and it cause a huge explosion and sent the Dragon skidding back,

and behind those smoke, the real Sora rushed in with a Rasen-Shuriken on his hand.

Sora: One more round!

Sora then hit the Dragon one more time causing an explosion and sent it back even more and saw that it was laying on the ground not moving.

Gasper: Is it over?

Asia: Sora your hand!

Everyone saw that Sora's right hand was bleeding due to him using Rasen-Shuriken and they all rushed at him and Asia started healing his hand.

Akeno: You're being reckless again!

Sora: Sorry! I got no choice!

Suddenly, they felt an earthquake and saw that the Dragon is getting back up and everyone looked completely shocked that it withstood all that barrage of attacks.

Xenovia: No way!

Kiba: You mean it wasn't enough!!

Everyone then prepare themselves to fight again until they heard a voice and it was Azazel.

Azazel: Stop! That will be enough!

The Dragon then stopped it's attack and everyone saw Rias and Azazel on top of the cliff.

Issei: You guys are here?

Sora: I hope you enjoy that show!!!

Sora just looked at Azazel annoyed and Azazel just smirk at him, and both Rias and Azazel explain the situation to everyone.

Issei: This Dragon is a Devil?

???: Thought I recognize you both, Ddraig, Draco!

Ddraig: Yes indeed!

Draco: It's nice to see you again, Tannin!

Issei: It spoke! And apparently you guys know each other...

Azazel: Blaze Meteor Dragon. AKA Devil Dragon Tannin... Former Dragon King. He allowed himself to be turned into a Devil for a reason I don't feel like going into now.

Kiba: A Dragon that becomes a Devil.

Issei: Just how powerful can you get?

Azazel: The Big guy has come down to help you down with your training.

Xenovia: Is it special Training with a full on montage?

Tannin: Hmm, I don't know what that means, but Sirzechs asked me to come help. And to my surprised, the Hero managed to figure out my intention by just a clash of fist!

Everyone then looked at Sora and he just stick his tongue out.

Sora: Busted!

Issei: Wait, you knew that this Dragon isn't really going to kill us?!

Sora: When it first slammed me to the ground, I can feel some lack of strength that it was putting into, so I realized that it was here just to test us, not to kill us! So I decided to play along and fight it with all I got!

Rias: I hope he didn't hurt you all to badly. I'm so sorry, I never wanted to play a trick on you. I was against the ambush ploy from the start. But my Big Brother can be a little insistent.

Azazel: And didn't I tell you to not use that Rasen Shuriken again, Sora!

Sora: I was suppose to give it my all! If I held back, you wouldn't be able to gauge my strength, and it would also be a disgrace to Tannin.

Azazel: Just as sharp as ever! I can sum up why your group isn't improving. Besides, the tendencies on spoiling them, you act with uncertainty, Rias.

Rias: What uncertainty?!

Azazel: I wanted to gauge the kind of power you could muster with when surprised. And trust me, I learned plenty. This fight show me what kind of training regiment you most needed.

Akeno: Exactly the plan a Fallen Angel would come up with.

Azazel: I'll do whatever it takes to make you kids stronger. I am your teacher after all.

Issei: Were the two of you in on this too, Ddraig, Draco? Why didn't you piped up when you guys knew him.

Ddraig: I have live beyond counting and the one who is spoils is the worst.

Draco: It was all an act. Tannin was only using half of his strength!

Rias: I can't take you guys home all messed up like that. So let's take a bath first!

(Timeskip)

Everyone then went to a public hot spring and started cleaning their bodies and Sora was again lost in thought and saw that his hand was shaking.

Azazel: So I was right. You're still afraid of that power of yours!

Sora:...

Azazel: Is it because of the incident happen at the Hero Clan? Or... is it because of what happen to Jiraiya and the red crimson girl?

Sora's eyes widened completely and utterly shocked that Azazel knew his past and looked at him.

Sora: How do you...?

Azazel: Let's not talk about that now! But a piece of advise, I suggest you start embracing the power instead of running from it. The more you resist it, the more it will consume you, so don't forget that!

Sora just looked down and again he was lost in thought.

Sora(mind): Start embracing it... Can I...

Sora then clench his hand tightly and had a determine look.

Sora(mind): No! I can't give up! I will live up to his legacies...

A/N: Alright! Here is Season 3 of HighSchool DxD Phantom King. A lot about Sora is going to be revealed during this season so wait for it. And as always, I hope you enjoyed this chapter and thank you for reading