(Y/n is now starring at a man who hair is identical to rias and is asking for for him as well so y/n summons his iron fist and gets into a battle stance)

???-I mean you no harm I only see to find a human name y/n l/n.

Y/n-What do you want with him?

???-My sister rias said that he could help me get my sister out of this wedding.

(Y/n then unsummons his iron fist and introduce himself)

Y/n-I am y/n and who are you.

Sirzech-My name is sirzech Lucifer and I am the older brother of rias.

(Y/n was surprised that rias has a brother and he was Lucifer himself)

Y/n-Lucifer as in the devil himself.

Sirzech-Yes that is correct.

Y/n-Huh neat.....so you said that I can help rias get out of the wedding.

Sirzech-Yes by challenging and defeating riser you will free her.

Y/n-Alright then let's go.....but before we go I want something in return.

Sirzech-Defeat riser first and I promise you I will see that you're request is fulfilled....deal.

(Sirzech then offers his hand to y/n and then y/n shook his hand to seal the deal)

Y/n-Deal....now let's go.

(But before they could leave Raynare Kalawarner and Akira quickly went to y/n)

Akira-Not without me your not.

Sirzech-Who are you?

Akira-A friend and guardian of y/n....y/n if you are going to fight then let me fight with you.

Raynare-Yes please let us repay you for saving us.

Kalawarner-And giving us a second chance and gave us roof over our head as well.

(Y/n was thinking about it until he came to an conclusion)

Y/n-Alright you guys can come with me.....but if things get too hard for you I want you guys to get out of there ok.

(Then the three of them nods)

Sirzech-Alright then now that we all are in a agreement I will now teleport you all to the underworld.

Y/n-Wait don't you have to be a devil or a supernatural being to teleport?

Sirzech-That is correct but I found a way to change that.

(Sirzech then gave y/n and the others a Gremory sigil card)

Akira-What is this?

Sirzech-A way for those who are not supernatural or devil's to teleport to hell and back.

Y/n-Woah nice.

Sirzech-Now then let's get going.

(Then group then teleports to the underworld and they were amazed by how it looked)

Y/n-Woah this is the underworld it looks so cool.

Akira-Yeah it does and it's certainly better then the one that I have been in.

Sirzech-Alright this is as far as I can take you I will head to the wedding to slow it down for your appearance head for that wedding building right there..... Good luck to you all.

(Sirzech then teleports from the group and and y/n and the other quickly began making there way to the wedding)

Timeskip

(Y/n and the others made it in time to the wedding and made a grand entrance as well)

Y/n-I object.

Riser-YOU.....WHO ARE YOU TO CHALLENGE RISER AND HOW DARE YOU INTERRUPT MY WEDDING!!!

Y/n-My name is y/n l/n and I am the current user of the Mazinger z.

(When y/n said that people were confused by what he said but interested in what power mazinger z has)

Random Noble-Why is there a human two fallen angels and a devil doing here?

Sirzech-Because I brought them here.

(Everyone then turns to see sirzech)

Sirzech-See the rating game I became bored and wanted to do something different.

Riser-But my lord riser won so there should be no reason to do this.

Sirzech-Yes you did win but barely you almost lost to someone who just had their first rating game and this human came here to challenge you.

Riser-But my lord he is just a human he is nothing to riser.

Y/n-Sounds like you are afraid to fight this human....but hey I don't blame you I had the power of a chicken I wouldn't fight anyone else either.

(And with that remark it pissed riser off)

Riser-You dare insult riser I will have you head.

Sirzech-So now that the both of you have agreed to fight each other...y/n l/n what is your request.

Random Noble-My lord you can't be serious giving a human a request.

Sirzech-Yes I am and this coming from your lord so do not question me.

Y/n-I only ask for two request the first one being letting rias be free to marry who ever she want and the other I will save after I defeat riser.

Sirzech-Alright then.

(Just then riser summons his peerage)

Riser-Bring me the head of that human.

(Then riser peerage leaped at the group but Akira stepped forward)

Akira-Tch trying to get rid of y/n before the fight big mistake.

(Then Akira transformed in front of riser peerage and it paralyzed them with fear and giving him enough time to take them all down and then Raynare and Kalawarner pinned the group with light spears so they couldn't go anywhere)

Riser-Tch if you want something done you gotta do it yourself.

(Riser and y/n were them teleported to a arena and everyone else was watching on the sidelines)

Rias-Please be safe y/n.

Akeno-I do hope that y/n wins.

Kiba-I have faith that he will win.

Koneko-Go get him y/n kick his ass.

Sirzech-Alright let the fight begin.

(Riser quickly threw a fireball at y/n put he quickly used rust hurricane to cancel it out then y/n used his rocket punch to hit riser and it hit him successfully and then y/n summon his jet scrander to fly to riser and use his iron cutter to cut riser but riser quickly grabbed y/n arm and threw him down and used this opportunity to land a hit on y/n then y/n used his other arm to cut riser but he was healing from it)

Y/n-Oh crap he can heal.

Riser-Ha Ha Ha don't you see human you have already lost this fight.

Y/n-Tch it ain't over until it is over.

Timeskip

(Y/n and riser were both fighting each other for 1 mins and y/n was getting tired)

Y/n mind-Damn it if the fight continues then I won't last long.

(Then y/n goes in to punch riser but he caught it and began twisting his arm)

Riser-I think it's about time to end this.

(Riser then began to beat on y/n and beat him to a bloody pulp and no one could help him but watch in horror of what is happening then riser grab y/n by the throat and slam him to the ground hard and then he summon a giant fire ball and hit y/n point blank)

Riser-Pathetic human this is what happens when you insult me.

(Riser was walking away until he saw y/n crawling towards him beaten bloody and burned)

Riser-Tch you just don't know when to  stop....don't worry riser will help you with that.

(Riser was then about to hit y/n with another giant fire ball)

Y/n mind-Damn...I don't think I can win this....I'm sorry everyone.

(Just then zero and the other mazingers appeared in front of y/n)

Zero-Really you are just gonna give up like that.

Y/n mind-Huh what are you guys doing here?

Mazinger z-We are here to tell you to don't give up.

Y/n-But....I can't beat him I'm too tired and beat up to do so.

Skl kaiser-So that just gives you even more of a reason to fight....a true mazinger would let nothing stop him from fighting he would fight to the end.

Y/n-But....I can't even use the full potential of mazinger.

Mazinkaiser-Yes you can you were able to unlock his abilities in short time all you are missing is that one piece.

Y/n-And what is that?

Zero-Pride

Y/n-Huh.

Zero-You carry our power and name but not our pride.....a true mazinger had pride in himself and would stop at nothing to win....now tell me y/n l/n where is your Mazin pride.

(Back to the real world riser was charging his attack until he saw y/n get up slowly)

Y/n-I think I finally get now.......what it mean to truly be a mazinger.

(Riser was confused by what y/n was talking about)

Y/n-To be a mazinger is to not only just carry this name but to have pride in this name and power......AND I REFUSE TO BE BEATEN BY YOU.

Riser-Tch die human.

(Riser then threw the fire ball at y/n but before it could hit him y/n said two words)

Y/N-MAZIN GO!!!

(Then the fire ball hit y/n in point blank range and riser thinking he won began to walk away until he felt a power aura behind him and when he turned around he saw y/n but now covered in mazinger z armor)

Akira-He did it he fully mastered mazinger z power.....you are so screwed riser.

Raynare-Woah his aura is amazing.

Kalawarner-He has a chance to beat him now.

Riser-Tch this will makes no difference.

Y/n-Alright on to the fight.

(Y/n did the mazinger pose and ran to riser riser began hitting y/n with his fire but there was no affect on him)

Riser-What he is immune to my fire?!?!

(Y/n began beating the crap out of riser he first used both of his rocket punch to injure riser all over his body the next abilities he used was his drill missile and it was piercing through riser and next he used his photon beam to leave a giant cut across riser chest then he used his iron cutter to cut riser leg talons making him unable to stand)

Riser mind-Huh how am I not healing from this now?!?!

(Then y/n used his rust hurricane to blast riser away then riser tried to fly away but y/n quickly summoned his jet scrander and grab onto the wing and threw it at riser cutting his shoulder deep and nearly his arm off but not stopping y/n used multiple missile punch on riser damaging him even further and riser was bleeding all over and then when he looked up he saw y/n chest glowing red and then realized that he will die from the next attack he tried to move but was too injured to do so but what surprised everyone was riser sister getting in front of him in a protective manor)

Ravel-Wait please stop he foreit then match please don't kill my brother.

(Y/n With his breast fire ready to release blasted it in a empty area away from the area and when it hit that area it made a giant explosion that could be saw from 100 miles away and then y/n walks towards the two siblings)

Y/n-Let that be a reminder of what happened if you mess with my friends or me got it.

(Then y/n released a powerful aura again letting them know how powerful he was now)

Sirzech-The fight is over y/n has won.

(Akira and the others cheered for y/n victory and the three of them were summoned back to the wedding ceremony and y/n unsummons his armor and when he did rias quickly hugged him)

Rias-Thank you y/n thank you for freeing me.

Y/n-You are welcome rias but can you let me go summoning the mazinger air drained alot from me.

Rias-Oh sorry.

(Just then they see sirzech walk to them)

Sirzech-Congrats on defeating riser y/n and for freeing my sister now please tell me what is you second request.

Y/n-Alright then follow me.

Timeskip

(The two of them then teleports back to y/n house and go to the basement where they see viser)

Y/n-I want you to remove viser stray devils status.

Sirzech-Y/n are you are.

Y/n-Yes.

Sirzech-Alright then.

(Sirzech then removed the stray devils status from  viser and quickly after viser started to turn normal)

Sirzech-Well it is done I will now take my leave.....take care y/n l/n.

(Sirzech then teleports away)

Viser-Is.....is this a dram.

Y/n-Nope this is all real.

(Viser with tears in her eye ran to y/n and hugged him)

Viser-Thank you y/n....thank you for giving me a second chance.

Y/n-Anytime.

Timeskip

(Y/n now laying in bed thinking about how eventful today was until he heard something rias say his name)

Rias-Oh y/n~

(When y/n turned to see rias he saw rias, Raynare Kalawarner and viser in front of him half naked)

Y/n-Oh wow now this is epic.....but what is this all for.

Rias-For helping us with our problem and it is only fair that we give you a reward.

Raynare-And don't worry we won't bite.

Kalawarner-But do be ready.

Viser-Because it is going to be a long night for you.

(Then all of the girls leaped at y/n beginning their night of pleasure but it the distance there was someone who was watching y/n earlier)

???-So he has awoken....he seem to be doing good so far.....let us see how long it will last but for now I must tell the others this news zero has awoken.

(Then then the mysterious person fly away to spread the news of zero but that is a story for next time)

(End of chapter 13 and season 1)