Contingency!

(While exploring Gaito's hidden lab, Chimon looked at one of his previous students named Akira whom was also one of Sawano's closest friends and opens the pod then catches Akira's awakening body.)
"Akira: ...Ngh... w-where.. what.. where.. a-am I..- C-Chimon..??"
(Akira then sits down on the ground as he then began to freak out a bit after looking at the numerous frozen pods with others inside.)
"Chimon: Relax..! Akira, I'll explain to you later... But what happened to you..?!"
"Akira: I... I don't.. OH..! I can't remember all well.. But I do remember meeting one of Kyoto's best assassins.. "Gaito Tamarei." I followed him as he wished to talk to me but a moment later, I passed out and.. couldn't wake up for a very long time."
"???: Everyone in these pods can't wake up anyway."
(As they all heard a familiar voice, Kenta appeared out of the darkness as he was doing a checklist of the entire pod collection.)
"Chimon: Kenta..?"
"Kenta: Relax, it's me. Gaito assumed this would be exposed someday so he left me with a message in case."
"Liberty: What exactly is the message?"
"Kenta: I will pull it up. Also, do understand that this message was recorded around six years ago before any of this occurred."
(As Kenta then sets up Gaito's recorded message, everyone was then listening to it.)

"Tatsuhiro (Gaito, Recorded): "For over fifteen years, everyone that was assumed missing or dead was actually sealed away inside this lab. Forgotten enemies, long time rivals, fighters, even deceased deities. To tell the truth, I've known everything that was going to happen the first day Sawano stepped foot outside of that dojo. I know everything that will happen, because in order to know how the endgame will go out, I had to die in this exact same timeline over two hundred billion times. I will not explain how except I will say one word: Chronos. For these frozen fighters to be as strong as we are today and witness the new era, I needed to take action and take every weaker fighter from the public then gift them power from the future, which is right now with Nathanial being revealed as an Archangel and my own father God was in on it. Before you do or say anything else, Chimon. I need you to do me a favor and pull a certain colored lever, you will know which one it is the second you see it. It will release a "copy" of me. One last thing, there is a way to defeat Archangel Michael. Once you release the copy me from its container, send the copy to collect a certain item I need. After you did so, tell it to throw the item to these coordinates, I will transfer them into your heads so no one forgets them by the time you catch this message. That is all, good luck friends."

(As the message ends, Chimon and the others finds the specific lever and pulls it which then begins to open an unopened door to the pod where they found a copy of Gaito named "Tatsuhiro Magachi" but appeared to have fifty percent of dragon blood within it along with several Senvoinian features. As the pod then opens, Tatsuhiro awakens as he already notices everyone in the room right now.)

"Tatsuhiro: Greetings everyone. It has been far too long since our previous encounter."
"Idxx: How did Gaito do all of this...?"
"Tatsuhiro: When "Gaito" as you all call him was reborn into me, everything he has mastered, including as the mortals would call it: "Clone Multiplication," Gaito mastered everything from the first page to the end of the book. For every time Gaito has vanished, one of his clones would activate as they followed their contract with Gaito."
"Scyroid: So for every time he's died, a clone has been summoned to take his place?"
"Tatsuhiro: Yes. However, me and Xisorr are his very first personas before Gaito came into existence. Xisorr was wiped out by a Dimensional Reset. I suffered the same fate once time went by. With the two of us retreated into our cores, Gaito emerged from Hirokuma Magachi's womb and was a Magachi child. But ever since his birth, he still remains synced to Xisorr and me."
"Trample Horn: How many clones... Gaito created..?"

"Tatsuhiro: ... Before that. I need you all to listen carefully. As we speak, Gaito dying two hundred billion times is true. The reason behind that is because, Xisorr made a contract with Chronos before Primordial Beings, The Void Realm, The Realm of Light or even Senvoinians or Phantoms were created. The deal was for Xisorr to understand everything that would happen in this specific timeline all the way to the final battle. Chronos agreed to the contract but once Xisorr learned everything, he would be reverted back to his infant years so Chronos would hope he forgot about the contract. After the first Dimensional Reset, Xisorr has suffered different kinds of deaths in those exact same timelines. Now, how many clones Gaito currently has? Combining Xisorr, me and Gaito: There are three hundred thousand Xisorr's, nine million me's and as we speak, there are so many Gaito's that they're exactly the same count as stars in the solar system. In shorter words, one hundred billion Gaito's.

(As Tatsuhiro began to explain more, everyone was then caught up to speed on the truth why Gaito has done everything privately for over fifteen years.)
"Scyroid: So all of this, is his contingency plans..?"
"Tatsuhiro: Yes."
"Idxx: And you are the real Tatsuhiro Magachi?"
"Tatsuhiro: Yes."
"Lotus: And Gaito is actually alive right now, not dead?"
"Tatsuhiro: Yes."
"Trample Horn: What do we do now..?"
"Tatsuhiro: Most heroes are in a corner right now against Michael and his Holy Angels. However, we have a chance in victory. Trample Horn, Lotus and Chimon, you three was gifted tiny ounces of Gaito's power ever since he first met you all. If you unlock it, it'll be more than enough to land permanent damage. "
(As the three then was told so, they then focused and began to feel even stronger than they were before as Chimon then remembered the coordinates.)
"Chimon: Oh wait! Tatsuhiro, Gaito also told us to give you these coordinates."
(As Chimon transferred the coordinates to Tatsuhiro, he then begins searching for the certain item which was instantly teleported to his hand as everyone was then curious on what it was.)
"Tatsuhiro: This my friends, is the key to reopening Gaito's path back home."
(Tatsuhiro then fidgets with the sphere object which then teleports out of his hand and rockets directly out of the atmosphere and across the dimensions to its location.)
"Now, we go back out there and fight. I've contacted several experienced fighters for backup."

(Meanwhile in Hell, Hinami was then defeating the last bit of Holy Angels as Azumi was then defending Hinami against one of the Michael clones whom was unharmed by any of their attacks until was sealed in a cosmic barrier then was transported to a time-frozen abyss which surprised Hinami to see the returning Shibuto as he was a mastered star and space magic user. Hinami then rushes to Shibuto and hugs him tightly without a single hesitation while crying tears of joy.)

"Shibuto: I'm sorry I got here late... I heard about Gaito. He cannot be dead, that's why I'm here to fight and prove it."
"Azumi: Young Shibuto.. You've grown a lot.."
"Shibuto: I have Lady Umezaki, its a pleasure to see you and Hinami again."
"Michael Clone: Oh so sorry to interrupt your reunion..."
(The clone Michael then returns momentarily at the exact same spot he was moments ago.)
"Shibuto: I've calculated you Michael, its perfectly clear you have no weaknesses right now. So I'm going to have to beat you in order to create that weakness!"
"Michael: Such a pitiful attempt, Shibuto. But I will not lie, your immense power and control of both Star and Space magic is such a wonderful gift. If you join us, you will truly become more than a divine being, a rule among the stars and the cosmos.. What do you say?"
"Shibuto: I was made to fight evil, not join it. Now I'm going to keep my word until my final breath, even if you kill me!"
(Michael then sighs and lifted one finger then aims it at Shibuto.)
"Michael: Then my patience with you, has finally collapsed."
(After one swipe with Michael's ring finger, Shibuto's body imploded by an invisible explosion which then revealed Shibuto's protective Cosmic Aura wrapped around his body. Shibuto then lowers his aura as he stares down Michael whom then released cosmic energy as well.)
"Shibuto: You two may wanna step back. If two stars collided, a black hole will be created."
(Hinami then heeds the warning and steps away with Azumi whom then was inside a protected barrier made by Hinami's Unholy Inferno.)
"Now, lets begin our fight... Shall we?"

(Meanwhile for Class X, one of the Michael clones was brutally beaten down while completely powerless and crawls to escape while trapped in a darkened area with nothing but terrifying laughs, screams and roaring was heard in the horizon of the dark. As the Michael clone then sees a massive door, he blasts it open to escape but then notices six eyes and three rows of teeth coming out of the door. As trembling footsteps was heard, Michael then sees a thirty feet hellhound-transformed Sawano staring down the defenseless clone as Sawano's back then unleashes over fifty of his chains which all was then turned into hellhound heads whom was also Sawano's demonic offspring. The terrified Michael then triggers himself into blasting an Anti-God's unfinished Universal Plunderer which did not affect Sawano at all. After knowing Sawano was for now immune to all elements and magic, Michael then realized he could not win anymore then begins to run for his life but was then screaming for mercy while fighting back knowing it was hopeless as the hellhound heads was not just burning Michael but eating him alive, bit by bit, limb by limb and piece by piece as Sawano howls out of victory which triggered all of Class X to fight even harder knowing that Sawano has won.)

"Onara: ENOUGH!"
(As Onara was then pissed off, she escaped the clone's seal, spin dodges a powerful kick, punches the Michael clone directly into its stomach, leg sweeps the clone off the ground while shattering the legs then finishes the revenge attack with a thunderous axe handle to the head which splattered into pieces and chunks. Onara then quickly acts and imprisons the headless body inside an imprisonment domain and locks it forever inside the Never-Ending Abyss.)
"... Ugh.. Fuck. I definitely need to take a shower when this is over..."
(For the rest of Class X, Ares then defeats his Michael clone while suffered heavy injuries but was not affected by the pain, Goxius ensnares Michael's clone into an endless loop of time and space which would never end. As the rest of Class X then defeated and kills the Michael clones while all sustaining injuries, they'd all regroup in a domain Choryrth has created quickly.)
"Choryrth: Everyone!"
"Xinera: Damn.. Those Michael clones were really tougher than I thought..."
"Onara: If it takes us days to kill a clone, then Nathanial won't be very easy of course."
"Sawano (Demonized): It took me two months but the clone is finally dead."
"Ares: We'll win this war, no matter what..!"
"Choryrth: For the time being, we need to assist help to any of the other realms in need of assistance. Sawano, you need to get to Hell fast. Shibuto is fighting one of the clones down there.. and I sensed another presence, its very powerful."
(As Sawano then realized Azumi and Hinami was in danger, he quickly rushes to Hell to defend his family as Onara quickly retreated to the Void Realm to protect her people as the rest of Class X arrived at the surface only to see bright lights of Holy Angels all across the skies as the real Michael was then basking in victory and predicted Class X's arrival.)

"Michael: Class X, you've finally arrived. Are you all now understanding thy truth? This was all a necessary need to be rid of all the flaws that exist in this world, only we, the true heroes of this timeline are sworn to do what is truly necessary."
"Choryrth: You're delusional with power, God has tainted you with this!"
"Michael: My dear father has not tainted anything, he is only doing his work."
(Michael then commanded the angels to attack Class X but suddenly, 80% of the fleet was then struck down by a powerful lightning storm as Michael stares up to see the same mysterious being Lotus has seen. As the individual descended, the cybernetic-like humanoid stares down Class X and Michael's angels then purposely attacks Michael's Holy Angels as he was silent.)
"You again...? Enough of your pity games!"
(The humanoid then vanishes to midair and purposely generates a category six tornado's wind while combining it with a blizzard and a lightning storm then purposely throws the weather combination into a cloud which forces the cloud to implode and multiply as both strong ice shards and lightning strikes was striking every last angel part of Michael's fleet.)
"???: You don't understand, its been years since I've waited for this."
"Ares: Okay... Any ideas on who this guy is..?"
(Goxius then takes one look into the mysterious being's information with his time staff.)
"Goxius: He has no affiliation with any organization as we speak. But according to his past deeds, this individual is known as... Rūju..."
"Xinera: I only heard of rumors about that guy, isn't he suppose to have a bounty on par with Milo The Clown's?"
"Choryrth: That is true, he's not a hero, he's not a villain. But his power is actually strong enough to even be an issue for almost all of Class SSS, even Class X maybe."
"Michael: Your attempts of attacking me are useless!! BEGONE!"
(Before Michael could snap his fingers, an explosive arrow then rockets through his hand and explodes off his entire forearm.)
"Konnor (Class SS): Its been quite a long time, but fighting for the sake of Earth is a promise WE'VE made to the Elemental Federal Branch and Heavenly Counsel!"

(As Michael was then attacked by an ongoing assault of elemental attacks which was landing direct hits as it was revealed to see the return of The Ten Tyrants once again along with the Order of Encursed Elements, Japan's Assassin's Guild and several hero/villain clans and lastly the Milo Clowns with their leader, Milo The Clown chuckling which holding a balloon sword as Michael realized the massive disadvantage towards him. Before Michael could then transform, a red lightning bolt quickly strikes Michael along with a massive stream of inferno to create an overloading affect which explodes the overwhelmed Michael down to one knee as he then sees Daigo Magachi and the grown-up and powerful Kazuya Magachi staring down Michael as well.)

"Kazuya: I've been gone for too long and its time I came home."
"Daigo: No more sitting on the sidelines, I'm fighting too!"
"Michael: You mortals.. All of you wish to atone for your sins as well, I can make that happen.."
(Michael then raises his hand to the sky and forces his eight wings to open as his dark halo then grows darker as he then activated fifty percent of his power along with Gaito's power as well. As Kazuya, Daigo and every other fighter along with Rūju and Class X was once again prepared to fight Michael as the tensions was then becoming bigger for every minute that passes.)
"Kazuya: Amisate."
"Amisate: Yes my love?"
"Kazuya: How much power will your mother allow you to use?"
"Amisate: Enough to eradicate half a dimension."
"Kazuya: Generate enough power and focus it into a domain casting."
(As Amisate then understood, she drew out her sword and meditated as she was then protected by Sukinahime's indestructible barrier which is strong enough to handle Gaito's punches as Daigo and Kazuya was the first two to walk towards Michael.)
"Michael: Oh? You're approaching me?"
"Daigo: In order for us to beat the fucking shit out of you-"
"Kazuya: We'll need to be as close as we possibly can in order to make that happen."
"Michael: Its unfair for all of you to jump me.. So lets make this easier..."
(By a snap of his fingers, Michael instantly creates six thousand Holy Angels all armed with weapons as Ares noticed then quickly acts then slams his claymore into the ground and increases everyone's resiliency, stamina and strength in battle.)
"Ares: A war doesn't start without my saying!! CHARGEEEEE!!!"
(As everyone charged after the Holy Angels, Kazuya and Daigo focused on Michael only whom was ready to fight them both at the same time confidently.)