Jaune, Scáthach, and everyone working to fight Tiamat are in Gilgamesh's throne room. Not long ago, Jaune killed Gorgon by fusing Ana's Harpe with Gáe Bolg. However, it turns out that was the plan of Kingu all along. To kill 'Tiamat' to awaken the real deal.
That's not all, Jaune has already faced Tiamat and used Gáe Bolg fused with Harpe, a weapon capable of killing immortals, yet it did nothing to Tiamat. And now, the group is thinking of a way to eliminate Tiamat.
"Currently, Tiamat is heading for Uruk," Gilgamesh said. "If we don't defeat her, Mesopotamia will fall".
"Yes, it seems," Ereshkigal said through a mirror connected to Kur.
"However, Tiamat will not die as long as there's life on Earth," Gilgamesh said. "And that's where we are stuck".
"Unfortunately," Ereshkigal said. "I haven't got any idea for you".
The discussion continued. Jaune was feeling frustrated since he didn't know how to help. Scáthach held his hand to calm him down.
"Dead…Dead? Dead!" Jaune said. Everyone then looked at him. "You said that Tiamat will not die as long as there's life on Earth, right? Then what if we brought her to a place with no life at all? Like Kur".
"If death can't touch her in a world full of life," Gilgamesh said. "Then send her down to a world devoid of life!".
"If Tiamat is the only living thing in the underworld," Jaune said. "Then we might be able to defeat her! Ereshkigal! IS there any place in the underworld that we can send Tiamat and not cause too much destruction in your domain?".
"T-There is," Ereshkigal said.
"Then, I have a favour to ask," Jaune said. "I want to send Tiamat to the underworld. I need you to show me the place where we can fight Tiamat if you are willing to let us fight in the underworld".
"I-I don't mind letting you do that," Ereshkigal said. "But there is a bit of a problem. Tiamat is heading towards Uruk. That is nowhere near Kutha, where the underworld is currently residing. And it would typically take 10 years for me to bring the underworld to Uruk.
But, since I hated Uruk, I may have been plotting something for a while now. If you can give me three days, I can connect the underworld to Uruk".
"No need for that," Jaune said. "I've been to the underworld before. That's all I need. I can create a portal to send Tiamat to Kur directly. That's why I asked if you have a place we can use to fight her".
"You can do that!" Ereshkigal said. She then sighed as she knew Jaune isn't someone you can use normal logic on. "Alright! There is a big open space you can send Tiamat".
Ereshkigal then showed Jaune the area they could use as a battlefield. Jaune then used his Eldritch Portal to test if he could enter. It was a success!
"With this, we don't even need to let Tiamat near Uruk," Jaune said with a smile. "I can head to the location of Tiamat and send her to Kur".
Everyone headed to the location of Tiamat, except for Gilgamesh, since the threat of the Lahmu is something he needs to take care of.
Once everyone arrived in the location of Tiamat, Ritsuka, Ana, Ushiwakamaru, Leonidas, Benkei, and others started to kill the Lahmu around them. They were protecting Jaune as he opened the portal to Kur. However, the plan wasn't as simple as it seemed. Tiamat was resisting the Eldritch Portal.
"This is…This is," Jaune couldn't say anything. This was the first time that anyone has resisted the Eldritch Portal. "Damn it! We need to push her in!".
"Then leave it to me!" Quetzalcoatl said. "Watch my greatest creation! Piedra Del Sol!".
A symbol appeared on top of Quetzalcoatl, and a mini looking sun appeared. She grabbed it and slammed it to the ground. This Noble Phantasm was able to eliminate all the Lahmu in their surroundings and cause Tiamat to kneel. However, it was far from enough.
"The weapon of Mesopotamia cannot hurt it," Quetzalcoatl said. "I was the one that said that. However! I am a Divinity of a distant mystic land!
The Primordial Goddess of Mesopotamia, you are nothing to me! Witness the power of our underworld, Xibalba, and the cataclysmic impact that annihilated countless lives!".
Seeing that her Piedra Del Sol wasn't enough, Quetzalcoatl internalised the power of her Noble Phantasm and flew in the sky. At the highest point she could reach, Quetzalcoatl descended back to Earth.
"I shall burn everything away," Quetzalcoatl said. "And become the comet that killed Earth!".
Tiamat seeing what Quetzalcoatl is doing, put up three layers of shields in front of her.
"Ultimo Tope!" Quetzalcoatl shouted as she descended at immense speed towards Tiamat. "Patada!".
Quetzalcoatl's kick impacted the shields of Tiamat. However, it was not enough.
"Not enough!" Quetzalcoatl said. "I don't have enough power to go beyond this wall!".
Ritsuka saw this and used one of his command spells to help Quetzalcoatl.
"O Command Spell!" Ritsuka said. "Bring victory to Quetzalcoatl!".
With that, Quetzalcoatl's power increased.
"Burning Fighting Spirit!" Quetzalcoatl shouted. "Xiuhcoatl!".
Quetzalcoatl was able to destroy all the shields of Tiamat. But it was pointless. It wasn't able to push Tiamat into the portal.
Jaune flew towards Quetzalcoatl before she disappeared. Jaune used his True Magic to heal and stop her from disappearing.
"It seems like I'll have to use it," Jaune said. "Scáthach! Get everyone away from here! I going to do something I've never done before!".
"Jaune…What are you planning to do?" Scáthach said. "Please don't do anything stupid".
"Hey!" Jaune said. "I'll have you know that I've not done anything stupid in my life before".
"Right…Like jumping in the Tiamat's blood to save Ushiwakamaru isn't stupid?" Scáthach said. "I know you're angry because you weren't able to help Siduri from being turned into a Lahmu. But that's no excuse to do a suicide jump into the mud when you didn't know that Avalon would be able to help you".
"I know! I know!" Jaune said. "You already chastise me for that. This is different. I don't plan to do anything suicidal. The reason why I'm asking you to leave is because I don't know if I'll be able to hold back enough not to cause harm to all of you".
"Are you sure that's the real reason?" Scáthach said. "Because if I see you do something suicidal, I'll kill you myself and join you in the afterlife".
Scáthach left after saying what she wanted to say. Jaune breathes a sigh of relief. He then initiated what he was planning to do.
"God Mode!" Jaune said. Immediately, his power increased by 1000x times. Everyone in the area felt the massive power released from Jaune. Ritsuka and Mash nearly suffocated since the power output was so dense and their body couldn't handle it. "Plus! Curruid Coinchenn!".
Jaune summoned the skeleton of Curruid and used it as armour. He then released his wings and flew towards Tiamat. Jaune punched her in the abdomen, and even with her gigantic body, she was lifted in the air.
"Holy crap!" Ritsuka said. "Are you sure Jaune is human?!".
"He is human," Scáthach said. "Well, partially human since he bathed in the blood of Fafnir and became part Dragon without the weakness of a dragon, same as me".
"The way Jaune is now, he feels like a God," Ana said. "How is it that I've never felt this aura from him before".
"That's because Jaune was suppressing the Aura he gives of," Scáthach said. "Jaune realised that the Godly Aura he gained after learning God Mode is dangerous to normal people as they feel suffocated even if he hasn't activated God Mode".
"That's what I felt when we were still close to him," Ritsuka said. "The pressure he gave off is nothing like I've felt before. Not even from the King of Mages".
Everyone was watching Jaune fight Tiamat. It was then Quetzalcoatl saw something unbelievable. Jaune used her Piedra Del Sol ad Xiuhcoatl, but he did so the same with her Ultimo Tope Patada.
While Tiamat was in the air, Jaune initiated Piedra Del Sol. He then internalised the power into himself, just like Quetzalcoatl. He then flew into the atmosphere before descending.
"Ultimo Tope!" Jaune shouted. "Patada!".
The power output was beyond Quetzalcoatl's version. The impact caused Tiamat to wail, and Jaune reopened a portal beneath Tiamat and himself. This time, Tiamat had no way of resisting the portal to Kur.