(A 1 week and 3 days later)(May 31)

Everything was going good as each clamps and clamp clusters were taking down. Luckliy Sheyta didn't got captured since she couldn't be in the battle as she was pregnant with Y/n's child. This shocked everyone but Kyuubi told them that the birth rate has increased as Y/n's body carries many forms which his demonic energy causes the increased rate. Many of them were freaking out as they rushed to buy many items since they'll have many children. Y/n's training is doing good as the Saiyans(Goku and Vegeta) helped him master his forms and going to at least Super Saiyan God.

Y/n: why does it had to be me?

Ren:*telepathy* well you're not alone many anime MC in harem anime have the same problem even me, Yu and Minato.

(Meamwhile In Rath)

Higa: more files just appears!!

Seijirou: more of them are already pregnant!?

Rinko: too many children,HAAAAAAAA!!!

Higa: how does Y/n even get this!?

Seijirou: how should i know he's gonna have an talk with us!!

Random Person: Muffin Button...

(Back to Underworld)

Ann: Y/n what are you going to do next?

Y/n: as in right know we have to go to the Wesdarath Empire, Thunderous Temple.

Eugeo: we have be quick to defeat that dragon.

Alice: yes as last time he was killed by Hersyrian.

Quinella:*groans* why do i have create such dumb child?

Y/n: game developers who used the part of you being defeated and having a another story with the DLC content and not going to the War Of Underworld Part 2 Arc.
(I want that as the final DLC)

(Timeskip)(Wesdarath Empire, Villind Plateaus)

Y/n: yep!! Still lightning just like last time!!

Silica: we still have to find those keys right??

Y/n: yep!! Time for a montage!!

(Mini-Timeskip)

Ryuji: I....HATE....THIS!!!

Ann: Tell me about it!!

Haru: not really that bad, Yusuke is fine.

Yusuke: it's perfect!! The strikes of lightning from the hands of god!!

Chie: just be quite please!!

Futaba: Inari just stop talking!! It's making me lose brain cells!!

Y/n: just almost there!!

(Montage end)

They finally arrived at the entrance of the shrine. But the dragon they were about to fight was already down dead.

Y/n: what!?

Roxas: too slow Y/n.

Y/n: you killed him!?

Roxas: yes i've taken his power of lightning.

Hersyrian: my, my what do we have here.

Y/n: Hersyrian!! You bastard!! Give me my son back!!

Hersyrian: do you mean them!?

He reveals the present Roxas, the siblings and Lycoris. This shocked everyone as Y/n gotten more angry.

Y/n: when did you!?

Hersyrian: well i have to deal the knights beaten them until i was bored and taken your children as they're the source of making me more stronger.

Eugeo: give them back!!

He was about to swing his sword but he stops. As Hersyrian has the present Roxas and the children near to the edge of the cliff.

Hersyrian: one swing will seal your children's fate!!

Then they vanished but Roxas(Future) was still there.

Roxas:....

Y/n: why? Why didn't you stop him!?

Roxas: he gave me power to defeat you faker!!

Y/n: well if words can't help then I'll have to beat some sense out of you!!

Then an small ball of light appears and Yui was there.

Yui: papa!!

Y/n: Y-yui how!?

Yui: well i have some help with people from the real world to sent me to help you!!

Roxas: who are you?

Y/n: Yui Sachi and my daughter, she's also your half sister.

Roxas: sister? No she died because you killed her!!

Yui: he's from the future?

Sachi: yes.

Roxas: we'll be fighting but not here only you will be fighting me but Eugeo, Yui, Sachi, Leafa and Medina will watch me kill you!!

He opens a portal to a different world Y/n told the rest to chase down Hersyrian to get back their children. They all nodded and began to chase Hersyrian down. Then the rest went to the portal. They finally arrived at the location next Eugeo, Medina, Leafa, Sachi and Yui were pulled down as they were forced to watch both father and son fight.

Roxas: Las Noches is the place were we fight.

Y/n: fine, let's do this.

He takes out Night Sky Blade and Roxas takes out his own version of Blue Rose but it was not the same color as it was black completely.

Y/n: HAAAAAAAAAA!!

He charges towards Roxas thrusting his sword at him but he dodges quickly. He uses shunpo to catch up to him and clashed their blades.

Roxas: not bad....

Y/n: I will heal your soul with light!!

He changes his sword to Tessaiga and it changes into a dragon scale blade which increased his power more. He punches Roxas in the face as he did the same. Then he puts away and went to Super Saiyan God and summons Fullbring Tensa Zangetsu.

Y/n: well time to test this form out!!

He sends a powerful sword swing and barrages of kicks. He swings waves of ki as it exploded on impact causing great deal amount of damage.

Y/n: PERSONA!!

He summons his Personas as he told them to use Door of Hades, Cross slash and Eigaon lastly uses Y/n uses Big Bang Attack to combine a large ball of each types causing a large explosion.

Y/n: you like that??

Roxas: no...still not going to defeat me.

Then he transforms that was stronger than Y/n's Super Saiyan God with Fullbring Tensa Zangetsu.

(P.s the form is much stronger because Roxas's experience in his battles before meeting Y/n and after.)
Roxas: Resurrección: Segunda Etapa Hōgyoku.

Y/n: what?!

He was already gone as Y/n was about to spin around but his head was quickly grabbed with a tight grip on his head.

Roxas: you're nothing.....you'll be dead and i'll avenge them.

The son from the future slammed Y/n's head into the tall pillar and gotten slammed to the ground causing a huge shockwave.

Yui: papa!!

She breaks free and uses some skills to increase Y/n's stats but only for 5 minutes.

Y/n: thanks Yui!!

[There should be a GIF or video here. Update the app now to see it.]

But even with the stat boost he was punched really hard sending him to the top of the pillars. Eugeo, Medina, Leafa and Sachi break free and throw any attacks at Roxas as he picks up Y/n by the neck.

Roxas:...

Y/n:*grunts trying to get off*

Roxas:....

He charges up a Cero Oscuras and points it to Y/n's chest as Y/n kept trying to escape his grip.

Y/n: son....this...isn't you!! Snap out of....it!!

Roxas: Goodbye Y/n....die...

He uses Cero Oscuras on Y/n's chest piercing it. Y/n's eyes became dead as Roxas throws him to the ground as everyone rushed to the body as they cried.

Yui: papa!! No don't leave me!!

Medina: you're not leaving us dammit!!

Leafa: Onii-chan don't leave us alone please!!

Eugeo: what about our son!? Our children!?

Roxas:....

(Y/n's Mind)

Y/n: i failed....

Hollow Y/n: do you hear their cries? Do you want them to be alone and weak from your death?

Y/n: protect....

Hollow Y/n: let me take care of Roxas.

Y/n: protect....them...

Hollow Y/n: do we have a deal king?

Y/n: protect family even means to have my instinct take over.

Hollow Y/n: now we finally settle the deal and fate king.

(Back to Las Noches)(end of music)

Then a rise of his energy increased greatly as red aura covers him and transforming him into his Vasto Lorde Form but Tessaiga is summoned in it's dragon scale form.

(Note: with the power up boost from SSG, Fullbring Bankai and Yui's stat boosting you're more stronger than before)
Y/n:.....

Yui: papa?

Eugeo: Y/n can you hear us?

Y/n:*growls*

Medina: his energy....it's so much to handle.

Leafa: Onii-chan....

Y/n: RHAAAAAAAAAAAAA!!

[There should be a GIF or video here. Update the app now to see it.]

(More scary)(meanwhile with Asuna and the group)

Hersyrian: you brats are reallying annoying me!!

Ryuji: oh yeah we'll be taking Y/n's children back you monster!!

Lightning surrounds Asuna as she was already gone and she came back with the children.

Hersyrian: how!?

Asuna:*mind* did Y/n transferred a lightning ability to me?

Hersyrian: answer me!!

Sinon shot barrages of arrows which all hits Hersyrian.

Hersyrian: dam you all!! I'll be back!!

He teleports away and everyone sighs of relief.

(Back at Las Noches)
He teleports in front of Roxas and slices his chest.

Roxas: fuck!!

Y/n throws a powerful/aggressive punch to Roxas's face. He grabs his legs and spins him around, he throws him to the ground crashing down.

He uses Lanza del Relámpago and throw barrages of the javelin-like weapon. Y/n uses Wind Scar destroying them all. Roxas was shocked as he Cero Oscuras and summoning another Lanza del Relámpago. He shot the attack as Y/n deflects exploding behind him.

Y/n: GRRRAAAAA!!!

He charges towards him but quickly teleports behind him slamming him down, he charges up a rasengan and teleports top of Roxas thrusting the powerful jutsu attack on his back.

Roxas: GHAAAAAAAA!!

He quickly teleports away from him. Then Roxas thrust his Lanza del Relámpago but Y/n catches it breaking the weapon like a stick and slicing Roxas's arm off.

Roxas: GRRRRRRRRRRRR!!!

His reaction wasn't fast enough as Y/n gave him barrages of punch, kicks, roundhouse kicks, headbutts and Million Stabs. He slams Roxas to ground, put his feet on his head.

Y/n:*growls*

He charges up a Full Power Cero witha mix of Ki and Chakra. Next he shot the attack cause a red explosion.

Eugeo: what power!!!

Leafa: Onii-chan stop it!!

Yui: papa!! You're scaring me!!

Sachi: Y/n stop hurting your son!!

Eugeo: Y/N FOR THE LOVE OF GOD, IT'S HURTING OUR FAMILY!!

Then his personas were summoned, changing into their human forms. Ren, Yu and Minato hold down as Y/n roars like a wild animal but failed as they were pushed backed away from the hollow. Eugeo and the rest rushed towards him. But Roxas quickly slices the horn and it shatters the hollow shell.

Medina: Y/N!!

Sachi: Y/N!!

Eugeo: Y/N!!

Leafa: ONII-CHAN!!

Yui: PAPA!!!

Y/n: i've failed to protect our children. I failed to become a father they wanted. I don't deserve their love, happiness and the lives. Maybe a monster like me deserve to be in Las Noches forever.

He drops to the ground and Roxas brings his sword up to the air.

Roxas: finally....no more running away!! I can finally have my revenge and avenge my family!!

He was about to swing but stops, his eyes widen to see them blocking him from attacking Y/n.

[There should be a GIF or video here. Update the app now to see it.]

(Authors Notes: i was going to use Samurai X Reflection sad ost but i think it was deleted as i can only find it in the end of the battle with Enshi at 3:55)

He began to see his family(the future counterparts) but they were older, more mature. His mind finally realizes what he has done and shocked him that he was going to kill his own father in cold blood. He sees himself again but he was with his child self and the child was confused and upset.

Child Roxas: why were you going to kill papa? What did papa do wrong? He was trying to save you*sniff* he wants to bring you back to the light.

Roxas: what have i done?

Roxas?: now you finally get it, Hersyrian tricked you into becoming his puppet. Wake up and save our father dammit!!

They were gone and he drops his weapon, he fell onto his knees and began to cry.

Roxas: i nearly killed my father!! If i did then mother would be alone!! I'm sorry!!*sobs* i'm sorry mother, father everyone!!*sobs* forgive me and my sins!!

He sees Eugeo cresting his cheek and Roxas feels more tired.

Roxas: mama....i feel sleepy....

Eugeo: rest my child, you had enough for today.

Then he began to sleep, Ren, Yu and Minato arrived and were shocked.

Minato: did he...win?

Yui: i don't know....

Yu: i see but we need to leave.

They nodded, Eugeo carries his future son, Sachi carries Y/n. Ren opens up a portal back to Central Capital Centroia. They put down Y/n and Roxas in the bed. Another portal opened, Asuna and the rest arrived with the children safe and sound.

Eugeo: are they okay?

Alice: yes they're okay.

Eugeo: thank god.

Makoto: Ren?!

Yukari: Minato!?

Naoto: Yu?!

Yu: hey guys....

Ren: sorry what we have done....

Minato: you can punch us as we deserved it.

They did punched them and cried.

Ryuji: dammit!!

Akechi: you know how long we were in total sadness!?

Ren: we know and we're sorry.

Makoto: just....never do that again!!!

Minato: yes we understand.

Albedo: what happened to Y/n?

Then they told them everything what happened. They were more livid at Hersyrian corrupting a child like that. Quinella was regretting her actions of creating Hersyrian that man no that cruel demon. Sucrose, Albedo, Futaba and Fuuka checked on Y/n and Future Roxas.

Albedo: okay we checked on them.

Sucrose: the regeneration is slowly healing up their wounds. But as they were battling they need rest to refill their energy back.

Futaba: it's gonna take like maybe 2-3 weeks.

Eugeo:*sigh* we need to train more, more than ever before in our own lives.

They all nodded and trained to become stronger.

End of chapter