Starting off with Tsubasa already crying from what he done when he gone full beast mode but when he drove he crash and fell off his bike

Tsubasa: He started crying on was on the ground "Dam it i'm a fucking monster!" He stops crying because he kept remembering what he done but most of it was from having to live with 4C and something in him which was anger came to him which was not only 4C but it was from nobody and by nobody he means Sona from not even telling his father as he hops on his bike

Later

He made it back to the home he was raised for the rest of his life as he already has his driver on and then kicks the door down which surprised Sona as she was reading

Sona: "Oh look whose...back."

Tsubasa: "What the fuck Sona."

Sona: "Excuse me?"

Tsubasa: "I said what the fuck?! Why haven't you talked about my father!" Then he grabs the injector and insert it onto the slot as he pulls it up and press the button on the injector

Neo!

Tsubasa: "Amazon." He transforms "WHY THE FUCK DIDN'T YOU TOLD ME ABOUT MY FATHER?!" Then he press the button on the injector

Blade loading!

Sona: "Tsubasa...why did you want to talk about that?"

Tsubasa: "You mean how I MET HIM AND THAT FACT HE WANTS TO KILL ME?! WHY HAVEN'T YOU TOLD ME ABOUT IT FURTHER MORE WHY HASN'T MY MOTHER TOLD ME ABOUT HIM?! YOU THINK I'M SCARED OF SEEING HIM! I RATHER MURDER HIM IN COLD BLOOD!"

Sona: "Dam him..."

Tsubasa: Then he walks up to her "I knew it I should have never taken your hospitality." Then he tries to strike her but every strikes were block via magic as every attack kept making Tsubasa angrier and angrier

Sona: She was calm as every attack Tsubasa makes weren't even making a dent "Tsubasa you know that every attack you make isn't gonna work at all. You might as well just stop."

Tsubasa: "SHUT UP!!!" Then after multiple attacks the armor breaks as then the tendrils from his origin form started to appear as it then breaks the magic barrier as without anything holding back he managed to somehow stab her...38 times as he was stabbed in multiple places except the head as he reverted back to normal by removing his driver as something in him made him cry and then...he eats Sona out of desperation and for being classified as a monster as he sensed Houma nearby so after finishing eating her he ran out of the house and hop on his bike and drove as fast as he can

Meanwhile

The Extermination squad were back at the already destroyed building which Shido was in severe injuries as then they found Mamoru who was unconscious who they took him with Shido to a van as they drove off to somewhere nobody knows which left Kazuya and Mizuki to go and hunt for the unknown Amazon

Mizuki: "You know about that thing? Could you sense it?"

Kazuya: "I did but I wasn't able to see it also don't even try to pull a fast one on me because i'm not a fool to keep my guard down."

Later at night

Tsubasa was outside having barley to eat but a devil's corpse which to him he find it tasty as he kept crying for what he done but barley cared as he focused on surviving and that was when he sensed Houma as she was already on the side of him

Houma: "Target found." She press the button on the armlet "Amazon." Then she transforms as she then attacks Tsubasa but he pulled out his driver but however Takashi and his squad were already there as they fired at him which Tsubasa did what he done to transform

Tsubasa: "AMAZON!" He transforms as now the bullets were slightly bouncing off as the armor were mostly machine rather monster as he then uses the opportunity to act out of instinct and press the button of the injector

Needle loading!

Then Tsubasa fired back and anyone else who got close to him he threw them aside and he even grabbed one of the men's gun and used it against them causing Takashi to take cover as Houma took some damage as he kept running and running away from them

Meanwhile

Kazuya and Mizuki went their separate ways to find the origin as after a few hours they came up with nothing as they were with the others which was with Reika and the other extermination squad and an injured Mamoru as they gave their report to which they understood

Reika: "Oh Kazuya you should know one thing. You should for now go to this place in the city." Then she handed him a map where it actually was a circle of the center of the city of Kuoh which could be stupid for him as due to 4C coming after him but since they're after Tsubasa for now they were able to rest for a temporary time as they wait for the morning to come

Kazuya: "Is Mamoru right? Is there no hope for our kind?" Then he kept looking up on the ceiling "Well I shouldn't worry about that because if I hold onto the past then I won't be able to function with the present and that'll effect my future."

Morning

Kazuya head out on his bike as Harmamo and Mizuki were looking for the unknown Amazon so Kazuya went out to where he was meant to go as he made it to the center of Kuoh which he waited

Kazuya: "Why was I called here? There should be a reason because I shouldn't stick around for a while." Then he felt a light tap from his shoulder "Huh?" He looks behind him to find it was some women in her early twenties as the only thing that raises the bar a bit was that she had a twin tail hair style

???: "Excuse me you wouldn't be known as Kazuya...Wilda?"

Kazuya: This shocks him as nobody from his 5 years of hiding has anyone knew his name apart from the extermination squad, 4C, Sho, Harmamo, and Irina but when he kept looking at the woman he can't stop and notice similar looks as he started having flashbacks from 5 years before Tlaloc "Wait you wouldn't supposed to named Irina Shidou?"

Irina: She started crying as she hugs Kazuya "Kazuya it's been 5 years and yet you still recognize me!"

Kazuya: "Well technically i've been writing you every month. Look we should go somewhere where there aren't a lot of people." She nodded as they went somewhere that they won't bring a lot of attention and somewhere with less surveillance

Irina: "How has 5 years been treating you?" 

Kazuya: "Oh well sucks a bit. Before Issei died, gain his sacred gear, fought Sho couple of times, Tsubaki was pregnant, had a child, made Sho blind by cutting from the eyes, Micheal gave me a sword and I have a new driver from Nozama."

Irina: "Wait Issei is dead?!"

Kazuya: "Unfortunately but he didn't died in vain as I killed Kokabiel. Though every day I still felt hopeless as I keep having to deal with being hunted as now i'm trying to find a hope for the Amazons something that'll allow them so that they won't even need to crave human and to make it where they can access their amazon forms without worrying about going Amazon."

Irina: "Wow that sounds depressing."

Kazuya: "Well that's the life of a few amazons. Also I heard that you became an angel. Literally."

Irina: "Yep."

Kazuya: "Yeah now then can you help me with something?"

Irina: "Depends on what it is?"

Kazuya: "You see there are new types of Amazons and we may have found the origin or I may have thought because i'm not certain the amazon we were after is. I'm getting of topic long story short I need you to help me kill the origin. Once there this will end for the infection of the water supplies."

Irina: "I guess since I have nothing to do I can lend you a hand."

Kazuya: "Well then here take this back." Then he hands back the excalibur of mimicry because he has no use due to him not needing of killing any devils

Meanwhile

Tsubasa was walking around a bit injured as he then suddenly sensed someone as he turned around to find Sho

Sho: He sniffs as he could smell some corpse meat from Tsubasa "Oh so you ate someone? Whose the lucky person to become the first victim?"

Tsubasa: "...Shut up." Then Sho pulled out his driver and twist the right rod

Alpha!

Sho: "Amazon." He transforms as he then attacks Tsubasa whose trying to put on his driver but Sho kept attacking as Tsubasa managed to put on his driver

Tsubasa: "AMAZON!" Then he puts the injector on the driver and press the button

Neo!

Then he fights Sho as the two were beating the living crap out of each other as the two weren't giving up but Sho was able to gain the upper hand as he kicks him far off

Sho: "Pathetic. Balance break." Then he uses his sacred gear as a bright light appears as a white armor with blue gems appears as the armor fused with Sho's amazon form causing it to become a combination of red, blue, and white

Albion: "So that's your son?"

Sho: "Of course now we just kill him and then the others so that this can end for good."

Albion: "Of course." Then Sho goes on the attack which his strikes were even dangerous then it was before as Tsubasa's armor burst as he was in his origin form but it didn't stayed for long as he used the gas to vanish quickly

Sho: "Dam."

Meanwhile

Now Kazuya, Irina, and Mizuki were looking for the unknown amazon which they were looking around but soon Kazuya sensed something as the two put their guard up as he puts on his driver and inserts the injector onto the slot

New Omega!

Kazuya: "Amazon." He transforms as he summons his sacred gear going into his balance breaker form which fused with his amazon form which resulted in a red armor with green lining and a mechanical appearance on the face "Alright then Amazon show yourself!" Then the invisible amazon used its tendrils to attack which they dodged as then the amazon revealed itself 

That was when Kazuya felt something was off as when he saw the amazon his suspicion was getting somewhere

Kazuya: "So I guess its been a while hasn't it...Tsubaki Shinra." Then that was when his theory was correct

Irina: "What?!"

Kazuya: "She is also an origin amazon as well as her son Tsubasa."

Irina: "I don't get it! How is that possible?!"

Kazuya: "It's simple really. What I find odd was that Tsubasa was part human and devil so I thought nothing as well as he was an amazon but they are a natural meaning that Tsubasa was born from a person with amazon cells so meaning he was an origin but Tsubaki it was only a hypothesis as what if the amazon cells transferred from Sho to Tsubaki via some sort of contact wether it be blood, saliva, or maybe sperm and as such Tsubaki is now a second origin."

Irina: "Wait so you're saying in order to stop this we have to..."

Mizuki: "Basically we have to kill them."

https://youtu.be/QhBjNyG4PUM