Hey everyone. Merciless Sun here with the final major chapter of How To Stop A Devil Civil War! In the last chapter, Isaac talked to Ariz and increased his power, and Rias and Akeno got captured by Kuroka of the Khaos Brigade! In this chapter, Isaac will fight with all of his might to protect the ones he loves. Enjoy!

-Kuoh Academy, 30 Minutes Later, Isaac's POV-

Earlier, I left Ravel and Asia at home. I don't want them to be here for this. As I was going towards the academy, everyone had split up a few hundred yards away from the school. I finally got there with Koneko, who Isabel had called over to me, and saw Riser, Raze, the unknown woman, Vali, along with Rias, Akeno, and Grayfia, all of whom were unconscious. I said, "We're here now. Release them!"

The woman said, "I won't let you stroll out of here. Besides, that girl, Koneko, is my sister."

Koneko was scared and got behind me. "Just take me. She doesn't have anything to do with this."

Vali came up to me, and said, "Perfect. Then come to me."

He then pulled out a set of shackles. But before he put them on me, I brought out the Rebirth Gear and punched him in the face! "I'm not going anywhere with you!"

He wiped some blood from his lip, and grinned. "I'm glad you chose the hard way!" He then brought out his Sacred Gear, and we then clashed.

Xenovia and Irina then came in, and fought both Raze and Riser. Good, those pricks had it coming. As we were fighting, Ariz said in my head, 'You know you're not strong enough, even after our power-up today.'

'Shit, is there anyway we can get stronger, even now?'

'As I said, there's a price. But are you ready to take it?'

'I….No, I want to prove I can beat this guy on my own! No easy way out!'

'You're quite determined. Alright, I'll lend you a little bit of my power, free of charge!'

I then punched Vali in the gut, and it felt stronger. "Yes! Now I can beat you!"

He then grabbed my arm, and I felt weaker. "Did you forget about my Divine Dividing?"

I then elbowed him on the side, which made him let me go, which I then grabbed his arm, and threw him at the school building. "No matter what, you will never touch my girls again, or there will be no God that will protect me from you!"

He got back up and said, "Then what about a Devil?"

"What do you mean?"

"Come on, you've never sensed my energy?"

"I never cared to."

"Then let me show you the strength of the true Heir of the Devil King, for I am Vali Lucifer!"

His Sacred Gear then said, "BALANCE BREAKER! Scale Mail!"

His whole body was then covered in white heavy armor and blue jewels in the joints, along with white Dragon Wings. I said, "Ariz, we really have no way to fight that, do we?"

"No, but you can fly."

"Wha-OOOOOOOOH!" Red-and-orange metallic wings then sprouted from my back! "Alright, I'll have some fun with this!"

Vali said in a distorted voice, "I see, you can't access your full power, not unless you would sacrifice yourself. This'll be over quickly then!"

He dashed towards me, and I blocked, but he punched me so hard that I hit a tree, and it splintered! I then hit the ground with such force that it made a 6 foot crater! I slowly got up and said into the earpiece, "Clark, you got any friends that could take down Vali? Cause I could really use the help."

"You're just in luck. Look up."

I looked up, and saw a huge column of golden light. "What the hell?!"

Out of the column of light came a man with long blonde hair, golden armor, and 12 Golden Wings. I said, "Is that an Angel!?"

Azazel got next to me, and said, "Correct. Meet Michael, one of the Arch-Angels, and an old friend. We still were able to be in contact after I fell, so he was happy to help. Now watch."

Michael said, "You have been quite an annoyance to my friend Azazel, so I am here to eliminate you, son of Lucifer!" He then made a huge laser of Holy Light! Vali put his hand out in front of him, and started to drain the power, but it was too overwhelming, and he got blasted through the school!

Michael landed, and walked to me. "Are you well, Rebel Phoenix?"

"I'm good. I really appreciate the help, Michael."

"I am just glad to help my old friend, Azazel. If that is all, I shall go back to Heaven."

He then flew away, and I went to the woman. As I was walking, Irina and Xenovia finally bound both Riser and Raze in Light chains. Thank the Gods that's over with. I said, "It's over. Vali is defeated, and your 'back-up' is trapped. Now give me Rias, Akeno and Grayfia. I'm done with all your bullshit!"

Vali slowly got up, and said, "Not so fast!"

"HOW!? You're a Devil, so that Holy energy should have killed you!"

"Hahaha...HAHAHA! You underestimate my heritage! No Arch-Angel shall defeat me."

I then got so angry that a huge column of blue flames came behind me, and I put my hands together and they got focused into a small concentrated ball of flames! "You don't want to fuck with me!"

He said, "Enough!" He then made a small energy blast on the tip of his finger and pointed it towards the girls. "If you want to save your Devil harlots, then surrender."

"I…. Fine." The flames dissipated, the Rebirth Gear and wings vanished, I plunged my sword into the ground, and I walked to him with Koneko. "You win. Just don't hurt them."

"You will not regret this. Let them go, Kuroka."

She grinned, and undid the chains on Rias, Akeno, and Grayfia. Xenovia and Irina then picked them up, and walked to Azazel. I said to Azazel, "Please take care of everyone, and tell Rias I'm sorry."

Kuroka then walked to me and knocked me out with Magic. We then vanished through a Magic Circle.

-Unknown Castle, 3 Hours Later, Isaac's POV-

Wha...I just woke up and…"Am I chained up?"

Lewis said, "Yeah. It looks like those Khaos Brigade dicks have us cornered. You want me to break you out with the Life Fibers?"

"No. I said I would be here, and I want to honor it."

Ariz said, "You sure? I'm inside your head, and I know you don't want this."

"You're right. I don't want this, but I have no choice. You know I want to protect the girls, and this was the only way."

I heard footsteps, and saw Kuroka. "You sure are chatty."

"What are you guys planning? And where is Koneko?"

"Oh, my dear sister, she is resting. As for our plans, we are after your Rebirth Gear. Now sit still, this will be quite painful. Minions! Come here and start draining the power."

A bunch of Devils came to me, and started to drain the power from me. But as they started, my jacket made spikes that stabbed them all in the heads! I yelled, "Lewis! I said stop! I need to do this!"

Kuroka said, "That is a persistent jacket. I shall remove it."

She made a Magic Blade, and sliced open the sleeves and torso. "Now let's start taking your power." She put her hand on my stomach, and I felt my energy getting drained, and I couldn't stop screaming!

-Shelter Under The Shrine, Rias' POV-

I woke up on the bed next to Akeno and Grayfia. I got up and screamed, "ISAAC!"

Isabel walked in, and said, "Hey. Welcome back."

"Where is Isaac?"

She got on the bed next to me, grabbed my hand, and said, "I'm sorry. He surrendered himself to protect you all."

I saw his sword in the corner of the room. Tears started streaking down my face, and I hugged her. "I can't believe it…."

"He really cared about you. I'm so sorry." She started crying as well. I then got up with her, and got on the couch with Asia and Ravel, who were also crying.

Asia said, "Isaac left something for us, in case he didn't come back." She pointed to a folded sheet of paper on the table.

-4 Hours Ago, Isaac's POV-

I can't believe things are going out this way…..If things will end the way I think they will, I need to set things in the right direction. I went into my room for a few minutes, and wrote a note for everyone. I walked back to the living room, and told Asia and Ravel not to read it until the girls come back without me.

-Shelter, Rias' POV-

I picked up the note, and I read it aloud,

"Hey Girls,

If you're reading this, then I either died fighting the Khaos Brigade, or I surrendered to them. Either way, know that I did this for you. I did it to protect you because you are all worth it. But don't mourn for me. Instead, I want you to work towards peace.

I read up on a few records here before this, and I know that peace between Devils, Angels, and Fallen Angels is possible. And please don't come for me. I have to stick this out because there is nothing else to be done.

And to Rias, please don't give up on anything. I know you too well to give up. I love you all, and I hope things turn out well for when I eventually come back.

Love, Isaac Fennis."

I then kept crying, and hugged Asia. But just then, we got a call from the communicator. Clark came up on the screen. "Hey girls...Where's Isaac?"

Xenovia said, "He surrendered to the Khaos Brigade."

"Oh damn. Have you planned on breaking him out?"

"No. He didn't want us to save him. But he wants us to have peace between the Devils, Angels and Fallen Angels."

"I see. Well, I think we can get started on that tomorrow, I'll have you set up a meeting with the Devil Kings, Azazel, and Michael. But in the meantime, rest up. And when Grayfia wakes up, bring her back to the Underworld. I'm sure Sirzechs will be happy she is back."

"Thank you, Clark. I'll let you know what happens during the meeting."

"You're welcome. And take the communicator, you are my new substitute Wanderer."

"Will do, Clark. Good-bye."

The screen then shut off. Isabel hugged me, and said, "I'll be here to help you, no matter what, Rias."

"Thank you, Isabel. I need this." We then kissed, and I fell asleep in her arms.

Isabel said, "Isaac, wherever you are, please survive. I don't think Rias can take any more of this."

-Unknown Castle, 2 Hours Later, Isaac's POV-

Kuroka was still draining my power, and I struggled to say, "AAAAAAAAAAAHHHH! Just…..Just KILL ME!"

She stopped, giggled, and said, "That won't do. Your Rebirth Gear will resurrect you no matter how many times you die. Or do you not know the true extent of your powers?"

"Well, if Vali had not ended the fight that way, then I would have known what I could do."

"That may be, but now I'll be taking away your power, no matter how long it will take. Your Soul is quite persistent. Since it is bound with the Rebirth Gear, it has an eternal flame that burns away at me." She then showed her hand slightly burned.

"Then I hope you either kill me, or get burned away by the flames, you bitch!"

She was about to smack me when Vali came in and said, "You have quite a Spirit, even when you're this thoroughly drained."

I got angry, and said, "Don't count me out yet, you asshole!"

He then punched me in the face, and I passed out.

-Mind Space, Isaac's POV-

I was sitting next to Ariz, who had gotten slightly smaller. "They really did a number on you, huh?"

He was out of breath, and said, "They….can try...as they might, but I will never be snuffed out!"

"Good. But in the meantime, I feel like singing. Who knows? Maybe they'll be annoyed by it."

"Alright, what did you have in mind?"

"Humility by Gorillaz."

"Nice choice."

"I take it you know the lyrics?"

"Of course, I'm in your head after all."

"Alright, I'll start." I then tapped the floor with my foot to the beat, and sang. "Calling the world from isolation."

"Cause right now, that's the ball where we be chained."

-Castle Dungeon, A Few Minutes Later, Kuroka's POV-

We were dragging the Rebel Phoenix to his new cell when he started to mumble, "Reset myself and get back on track….."

Vali said, "What is this?"

He continued, "I don't want this isolation…"

I said, "He is still full of energy. Good. I'll enjoy this."

-Mind Space, Isaac's POV-

I was about to start the next verse when Ariz said, "It's time to be serious. Do you think both of us will get out of this alive?"

I sighed, and replied, "I honestly have no idea. I just did it on a whim to save the girls….I just wish I could talk to them one more time."

"I'll try to give you telepathy, but at this rate, I'll only last for a few days."

"Thanks, Ariz. I would really appreciate it." A chair then appeared, and Rias came in.

She said, "What...Isaac!"

I got up, and hugged her. "By the Gods, I missed you! Did Grayfia get back to your brother?"

"Not yet. I'll take her back tomorrow."

"Good. I'm glad you're safe."

"I just wish you were. too" A tear then dropped.

"I know, but this was the only way I could save you all. But as I said in the letter, I don't want you to give up. Work with your brother to unite with the Angels and Fallen Angels, and together, you can defeat the Khaos Brigade, and maybe get me out of this hellhole."

"Do you know where you are?"

"Not really. I'm in a castle, and it's cold as all hell. But at least I have Ariz with me." I then started to slowly fade. "I'm so sorry my actions put you in danger, but now I'm paying the price. Good luck, and be sure to work with Xenovia and Irina. They are great fighters and allies."

"I will."

"Good. Good-bye, Rias Gremory. I'm glad I met you, and I hope to see you in the future." I then faded away.

-Castle Dungeon, 20 Minutes Later, Isaac's POV-

Ugh...Shit, this hurts. I opened my eyes, and Kuroka was in front of me. "Excellent, you're awake."

"Why are you doing this? I thought you wanted Koneko."

"I joined them because I wanted the power to get her from that wretched Rias Gremory. And yours shall be perfect for our cause."

"Dammit….What do you want with the Heart of Yggdrasil?"

"All shall be revealed in time, but let's just say your power is the key. But for now…." She then started draining my power again!

"AAAAAAAAAAAAHHHHHH! Rias, I'M SORRY!" She then kept draining my power for the next 3 hours.

-Shelter Under The Shrine, Rias' POV-

I just woke up with Isabel. "Oh, Isaac…."

Akeno was next to me, and she said, "Isabel told me everything. I'm so sorry, Rias."

I said, "Now's not the time to be sorry. Now is the time to be stronger, because if we want to get him back, we need to strengthen ourselves, and each other."

I wiped the tears off my face. I know Isaac wouldn't want me to cry over him. I'll keep fighting!

And with that, this season is over! Isaac had to surrender to the Khaos Brigade, and now they are draining his power, and Rias will start to forge alliances with the Archangel, Michael, and the Fallen Angels. In the next season, Rias and her peerage will fight back against the Khaos Brigade and hopefully rescue Isaac before his power is gone. What truly matters is how long will it be before he is saved. Thanks for reading!

-Author's Note-

And that's the end of How To Stop A Devil Civil War! I do have a couple more chapters after this which will be about the meeting betwee the Devils, Angels and Fallen Angels; and a date with Isabel and Rias. And then...We will begin How To Survive In A World Of Gods!

Also I would like to thank a few people for giving this a Favorite.

Savae Little

ianp1998.

And now for the track list:

All Nightmare Long-Metallica

The Struggle Within-Metallica

Don't Threaten Me With A Good Time-Panic! At The Disco

Mr. Brightside-The Killers

Misery Business-Paramore

Close To Me-Sabrepulse

Face To Face-Daft Punk

Once again, I thank everyone for reading, and I hope you leave a review. Later!