Final struggle!
At the same time, in another world, Issei was strangely okay. Even though the explosion that came from detonating the True Longinus could even destroy a planet, it didn't hurt him as much as it somehow fell on the other part of another world.
Evie Etoulde.
This was the name of this world.
The world of Evie Etoulde is divided between Evie and Etoulde, who have been at war with each other since ancient times.
Issei was on Etoulde's side as his body was reconstructed by the Chichigami, and he was also saved by the leader of the Etoulde, Resetoras. It was also due to the self-destruction that the True Longinus didn't explode on the Etoulde's side as they were protected by Issei's plot armor.
Instead, this explosion happened on Evie's side, the mechanical life forms led by Melvazoa.
Watching the explosion and destruction that happened on Evie's side, everyone was at a loss for a while. They should be happy that Evie, who was their enemy, was killed, yet at the same time, they also had a chill since they could see how strong Riser was.
As long as Riser is able to come to Evie Etoulde, then...
"We can't continue like this!"
Issei from the future, who had taken over the current Issei, said righteously. "We can't fight between us any longer! We have to combine our power to fight against this crisis!" While some of the Evie might not be able to accept the creation of an alliance with Etoulde, who had been their enemy from ancient times, they knew that they didn't have a choice.
If they wanted to win this war, they had to combine their power with each other, so under the leader of Issei, they met the leader of the Etoulde, Resetoras.
If it was before, they might fight immediately as many of them had died, and whether it was Evie or Etoulde, they had a grudge that was impossible to erase.
Yet, when Issei came, hatred, grudges, and negative feelings disappeared. He had this aura that worked like magic, which could make everyone believe in him.
Still, hearing Issei's story, Resetoras ground his teeth in hatred. "Riser Lucifer..." He would remember this name and wished to take his life as he knew that this devil would become the obstacle to Etoulde, or rather, it might become the nemesis of Etoulde as a whole, especially when he learned Riser's ability from Issei.
Yes, as Issei from the future knew many things, he naturally knew about Riser's ability to manipulate a machine from the Alpacca Tyrant, which he had robbed from others.
Riser was evil, and they had to stop him!
"I know. I will believe in you, and we will fight together to defeat him!"
No one was sure whether Riser could do another explosion like what he did when he made the True Longinus explode. Yet, they had a feeling Riser should be able to do more, and by then, no one could stay alive anymore.
It was also due to this—
"Isse Hyoudo."
Regalzeva, one of the powerful beings on the Evie Etoulde, looked at Issei and asked, "I have heard that Chichigami has become one with your body?"
"That's right."
"Then, let me become one with you too."
"Huh?"
Everyone was startled by Regalzeva's decision.
"Are you serious, Regalzeva-sama?"
"Yes." Regalzeva nodded. "It's for the future of everyone. If all of us want to live, I have to do this." He then looked at Issei again and said, "Issei Hyoudu, can you promise me to defeat Riser Lucifer?"
"Believe me! I will definitely defeat him!" Issei didn't have a doubt as he believed that he could defeat Riser. While Riser from the future might be a fearsome creature, this current timeline of Riser was as good as a baby. As long as he gained Regalzeva's power, he believed that he could take down Riser!
"Then, I leave everything to you."
Like Chichigami, Regalzeva gave his body, soul, and everything to Issei.
At this moment, not only did Issei gain the characteristics of a devil, a dragon, and a divinity, but he also gained the characteristics of a mechanistic life form!
His body grew stronger and stronger, and he had become the symbol of hope for everyone.
Yet Melvazoa, the leader of Evies, and Resetoras, the leader of the Etouldes, felt that this wasn't enough. For the future of everyone, they knew that they had to do this, and they believed that Issei was someone that they could entrust to.
"Your strength isn't enough, Issei Hyoudo!"
"Yeah, can you bear with us, Issei Hyodou?!"
Still, Issei was stunned by his words. "What do you plan to do?"
"Like Chichigami and Regalzeva, we will give our everything to you."
"In exchange, we hope that you can protect everyone."
Whether it was Melvazoa or Resetoras, the two showed a sincere expression filled with hope toward this young man. In their minds, as long as they gave their everything to this young man, nothing was impossible!
Nevertheless, Issei was startled by their words and determination. His eyes were in tears as he had never thought that someone would believe in him this much.
"Partner! While my power is limited, I will give all of them to you!"
"No, Ddraig, your power isn't limited. Your power is amazing."
The reason why Issei could fight against Riser was all due to Ddraig's innate ability, "Penetration." As long as there was this skill, he believed that he could defeat Riser. Moreover, he also gained the body, ability, and soul of Chichigami and Regalzeva.
Yet, if he could gain even further, then why not, right?
Issei came to this world because he wanted to save everyone, especially his harem, as he didn't want them to fall under Riser's hands!
'This time, you're going to fall!'
Facing Melvazoa and Resetoras, Issei didn't have any doubt or hesitation. His expression was full of determination and firmness, showing that he would do everything to defeat Riser Lucifer, the source of all calamity in this universe.
"Leave everything to me. I will definitely bring him a defeat!"
"Your words reassure us."
"We believe in you, Issei Hyodou."
There was no doubt in the voice of Melvazoa and Resetoras, and they believed that this young man was able to give them a miracle!
"Leave everything to me!"
With those words, Melvazoa and Resetoras gave their everything to Issei Hyoudou.