The human army moving forward towards the Demon castle, it took almost a year of constant wars nonstop demons and humans falls in the battlefield and countless beings died and the land turns into a pool of blood while all the Demon Generals that is left is standing guard on the castle the 4th and 6th demon General Harpy and Manticore is standing guard in front of the gate with hundreds of high grade demons, the 8th and the 5th/11th General Serpent and Worm stand guard in front of the castle, while 2 of the great 3 is still standing guard in the demon castle the 2nd and 3rd General Griffin emperor and Garuda lord while the 1st General and the 12th general Wyvern king and Mephistopheles is going into the battlefield that is already near the gate and trying to find what happens to the 11th/5th demon General Ivy queen, "hahaha sir Wyvern king do we really need to go" said Mephistopheles with his signature laughter in every words just like a mad man "yes we have to Mephistopheles, if the war is near the gate who knows what happened" said Wyvern king while taking off and flying to the battlefield "but sir aren't we also looking for that queen of flowers hahahaha" said Mephistopheles also taking off flowing the Wyvern king toward the battlefield "I don't think she's in a bad situation" said the Wyvern king while flying and putting up some more speed "so what you say is you don't care right? Hahahahaha" said Mephistopheles flying around Wyvern king with a faster speed then light "Mephistopheles listen if I were to fight the 10 golden knights that remain you know what to do," said Wyvern king with a lower voice and sounds worried and seeing this Mephistopheles stop his playing around and fly beside the Wyvern king "hahaha don't worry Sir I'll do my best," said Mephistopheles with full of confident and a wide smile but like always the Wyvern king face doesn't make any expression and still plain as always, the rest of the flight was silent no one talked to each other while Mephistopheles is doing tricks all along the way trying to make Wyvern king at least make a single expression.
At the Demon castle, the Demon king sit on his throne looking at the battlefield with Pandora from a magic orb, the situation is dire all the Demon have retreat to the castle and all the monsters in the monster village around the Demon territory and demon Castle took shelter with in the demon castle from the war, the King and his prince also the noble are joining in the battlefield from a saving the princes and the princess into a war of slaughtering the Demons, and anything that live in it territory and around it, the humans turn savage killing everything on it ways and their objective turns into the Demon king head with situation like this the Demon king have no other choice but to make a move but the Wyvern king told him to stay still and that he'll take care of it for now so the Demon king can make a peace agreement later on, with both side suffer many losses then both side will accept a peace agreement but the situation right now is that the Demons and non-human beings like elf, dwarf, beast-man, etc. is at the edge of destruction with only the Demon castle is the only thing that can give protection and if it fall everyone is forced to evacuate to the high elf and dragons territory and this is something that the Demon king must not allow and then he trust Wyvern king to take care of this even all the Demon Generals disagree but there was no other choice because with this situation on the line the Demon king can't send more than 2 General knowing that they already lost many strong demons and 3 demon Generals where one of the general corpse is still nowhere to be found, "hey Pandora will all of this fall like this?" said the Demon king while looking up to the ceiling "I hope not so my king, if Wyvern king is able to take care of this matter then we might be able to receive peace" said Pandora with worries knowing that it won't be easy with only both Wyvern king and Mephistopheles, "Pandora do you know why those humans don't want to accept the peace?, because it just their nature they won't work together with something is different with them, jealous, pride, greed the most emotion that took over their hearts and minds and there is still something that stood above all those emotions and that is fear and emotion older then time itself a fear of something new, a fear of something different, a fear of becoming weak and a fear of the strong with all this fear they'll never accept our peace different with us that known no fear and death just because we don't believe in heaven and hell what do you think if those humans have the believe such as us huh?" said the Demon king "well that will destroy the human society and way of live with all those emotions they have accomplished evolution of both mind and physical their economy and politics are from their emotions of pride and greed and their society is full of jealousy and fear of one and another" said Pandora looking at the Demon king that is still looking to the ceiling "well we might see something interesting" said the Demon king looking back at the magic orb.
The Wyvern king and Mephistopheles arrived in front of the battlefield, the Wyvern king used his skill WYVERN HORNS with a single attack the battlefield turned into a wasteland with nothing left all the knights and hunters die in an instant while Mephistopheles was carrying all the Demon away and telling them to retreat to the castle, "Mephistopheles you informed the general on the gate get ready for impact" said the Wyvern king and after hearing this Mephistopheles was shocked the battlefield and the gate is 3 miles away he wants to warn the general on the gate to get ready!? That means only one thing he's going all out this time and might accept the agreement, the Wyvern king use another skill WYVERN ROAR knocking back all the reinforcement that just arrived to the battlefield, and with just two skill the Wyvern king wipe out to army and when he was walking to the human camp 10 of the golden knight left show themselves in front of him "Wyvern king, I didn't know that you would take out all this army and us by yourself" said Sir Capricorn that standing in front of all the other golden knights but suddenly the Wyvern king charge without warning and give Sir Capricorn some serious damage with just a couple of punch "all of you shall die here" said the Wyvern king standing high in front of the golden knights, "DIE" shouted the golden knight of Cancer charging in with her dual spear but the Wyvern king blocked it with just his wings while all the other golden knights except Capricorn that is lying on the ground still knock out after the sudden attack but still all their attack was stopped just with his wings "FOOLS!!!" shouted the Wyvern king pushing every one back and at the same time Wyvern king use his skill THE BLACK SUN a skill that can wipe out an entire kingdom with a high risk of risking one own live, all the living beings was the huge black sun on the sky falling down to earth with high speed and with the huge size no one can escape this skill not even the user, "YOU CRAZY BASTARD!! YOU KILL US ALL!!!" shouted the golden knight of Pisces still trying to stand up, all the golden knights was hardly able to stand up and now they have to find a way to survive such monstrous skill it was impossible for them, the Wyvern king face look sad his right hand was on the sky holding the black sun tears was coming town from his eyes his left hand is holding grudge not to be hasty his emotions was in confusion sad, angry, happy, etc. all the emotions are mixed up and suddenly he was laughing historical full of murderous intent and made the aura turn dark black clouds was everywhere the black sun itself was covering the sun the world turn into darkness with no eight or hope was seen and all living beings feel into despair at that moment after seeing the black sky, "THIS MAD MAN!?" shouted the golden knight of Libra, all the golden knight was shouting and some was speechless the world truly fall into despair at that moment even the dragons of the sky went down to the ground and all the monsters started hiding ignoring their kind goblin, wolves inspection all hiding in the same cave, humans, demons, elf, dwarves, beast-man, etc. is all hiding from the sky no, and at that moment they don't care anymore what is everyone else all they care is survival finding a way to survive such power that could cover the world entire sky into black pitch.
At the Demon castle all the Generals quickly look at the sky that turn dark even the Demon king and Pandora quickly ran outside to the castle balcony so they can see it with their own eyes the prince and princess also want to see the black sky, all the creatures in the demon castle started crying beside the prince and princess that does not understand what is going on, "DEMON KING!, THIS IS BAD YOU SHOULD TAKE SHELTER" shouted Harpy the 4th demon General from under the castle while flying towards the Demon king in a hurry, afraid that the Demon king might get hurt by the after damage of the skill Harpy tries to make the Demon king to take shelter but he refused due to the other demons and etc. that haven't taken shelter in his castle "I'm not going to the shelter before everyone else does, including the Demon Generals" said the Demon king concern of his people and not wanting to abandon them but suddenly a huge shock wave hit the castle and around it, "those mad man they're trying to stop that skill" said Harpy looking at the Black Sun that spark with light due being under attack that would cause massive Shockwave up to 100 miles around it "my king is not safe, those humans are going crazy trying to prevent the Black Sun" said Pandora trying to pull the Demon king back into the castle when suddenly Manticore the 6th demon General flew up and reported "my King everyone have taken shelter some of them is in the castle and some of them is in the mines with Worm and his men" said Manticore after bowing down in front of the Demon king, and then the Demon king entered his castle with Pandora, Harpy and Manticore and when they about to enter the Demon king chamber they meet the prince and princess that demand an explanation about what is going on, "demon king!, what us going on out there? Why is the sky turning black?" asked the prince while following the Demon King into the chamber "listen carefully prince Furgas, don't get out of my chamber for the next few days the thing that made the sky black is a skill a GOD CLASS skill" said the Demon king and hearing this the prince was shocked and standing speechless while the princess is clueless since she does not understand what both of them are talking about "so you are saying you have a man with such power and rather choose peace?" asked the prince "even if I choose war nothing will change, in the end, it would still be the same but, a skill that can cleanse the world with a sacrifice of a single life a skill that was used by the 13th golden knight to fight against God will WILL OF MEN".
The golden knight is known to be 13th in number but legend have it that the 13th knight fight against the God that created him and because of this the 13th knight is known to be the symbol of traitorous but another story tell that the 13th knight actually hold the symbol of truth and loyalty since the God that he fought was not the god that created him but it was a god that known to be THE FAKE GOD an entity that mimic the power of God and such entity also have the power to manipulate everyone and everything but the 13th knight knows about this and planned to put an end to such lies that the Fake God have made but at the time he have no such power and after searching for far and wide he found that power, the power of kings among kings the power that human have that can surpass even God's itself the power is known as God skill a skill that can only achieve by someone who have left everything behind and see no future, a skill that have no desire and no limit, a skill that can destroy yet it creates a skill that don't take any and don't give any, a skill that don't have any attachments with live or death and that skill is known as God skill, the skill that the 13th knight used to fought the Fake God was called WILL OF MAN a skill that can take anything and give anything a complete opposite of what the God skills is and this skill is known as the GOD SLAYER SKILL, different with the BLACK SUN or any other god skill WILL OF MAN is a skill used to surpass any other skill but it have a backfire, like any other strong power they have big consequences who ever use the skill will take his own live and thus why after the 13th knight used this skill after taking all the Fake God skills he released all those skill so one day if the Fake God ever rise again there will be a people in this world to stop it and finally bring the world back to before the lies of the Fake God.
After Harpy safely escort the Demon king to his chamber he quickly flies out and flies toward the battlefield where the Wyvern king is now standing and fighting the 10 golden knights alone but halfway Mephistopheles stop him "where are you going Harpy? do you want to say goodbye to your lover? Hahahaha" ask Mephistopheles with his usual laughter and after hearing so much of that Harpy doesn't even pay attention to Mephistopheles weird habits anymore "I still have something in clear that I have to settle with that man" said Harpy pass thru Mephistopheles ignoring him and still going to meet the Wyvern king "hey hey hey, don't tell me your about to ask such ridiculous questions at this type of moment "ask Mephistopheles confused following Harpy to meet the Wyvern king "that is not what it is, I just need to know why would he go this far just for such ridiculous goals, even after almost a year of constant war I haven't been able to meet him ever since the first attack even if I know just a little I don't care if I have to take risk of my own live for it " said Harpy confused trying to understand what is actually the goal of both the Demon king and the Wyvern king that they would go this far if both act come to the same result no matter of it war or peace the end will be the same, "sorry Harpy I can't let you do such thing" said Mephistopheles, hearing this Harpy quickly turned around and looked at Mephistopheles but it was too late Mephistopheles already used his skill JAIL OF ENVY a skill that can trap anyone stronger then the user "MEPHISTOPHELES WHAT IS THE MEANING OF THIS!?" shouted Harpy inside the cage mad because such act was done "hahaha hahaha sorry Harpy I can't let you know any further this will ruin it" Mephistopheles send Harpy to an endless void but before he did Harpy saw Mephistopheles was talking to someone "ah yes its already done miss, with the obstacles off the way we can finished our plan to kill the kings and take over" said Mephistopheles, "so this is how it will all ends, I might not even know what really is going on this whole time huh..., Master forgive me I didn't take your warning seriously, there is truly nothing I know about this world after all I'm sorry... " that was the last thing that Harpy was thinking while tears was dropping from his eyes because he have failed his master and couldn't accomplished what his master taught him before his master was captured by the human empire, and then Harpy Kurosan the 4th demon General completely vanished into the void by a traitor among the Demon castle.
At the battlefield the Wyvern king lowering his hand and the Black Sun is getting closer and closer, the golden knights are hopeless they can't defense against it and they can't run away and at this moment they realize that it was the end for them there was no other choice but death "hey Wyvern king can I have my last request" said the golden knight of Capricorn while lying down on the ground in front of the Wyvern king after waiting all his energy to stop the skill "I shall grant it beside your live" said the Wyvern king "please make the peace happen, I can't bear the thought of many people suffering of such skill" said Sir Capricorn "do not worry this skill will only affect us and will not affect anyone outside the magic circle" said the Wyvern king while pointing around him with his other hand to the almost visible magic circle that cover about 12 hectares "that means you'll die too right?" ask Lady Scorpio who is hardly standing next to Sir Taurus who's unable to stand up "my death will come after he agreed to give me the thing that necessary for my personal goal "said the Wyvern king looking at Sir Aries "and who is this person? The Demon king?" ask Sir Capricorn "no he's not he's someone that can kill even the gods" said the Wyvern king "does that mean!?" but before Sir Taurus was able to finish his words the Wyvern king cut in and says "yes it was him, he was the one who will give me what I need, the power to destroy this whole world to ash" and right after that the Black Sun fell to the ground and vaporize everything with in 12H and with this the last remaining golden knights are dead and nowhere to be found and while the entire area is still covered with dust and smoke the Wyvern king was still standing with almost his entire armor destroyed and half of his body was burned and right before he collapse a blackish figure showed up from his shadow "with this we can finish our objective" said the black figure while carrying the Wyvern king, just before the black figure went back into the shadow a faint voice could be heard from the Wyvern king "long live Zei Fal..." and right before he could finish it he vanished to the shadow and never to be seen again.