After showing his world to Saeko, he decided it was time to return home, and make some preparations so he could live well with his family and friends.
After spending three years in an apocalyptic world, he realized how important it was to be part of a group or a faction, but how could someone as strong as him join the devils, angels? This was not what Altair intended.
In fact he was more inclined to create his own faction in this world, and he even already knew some members he could recruit to make his job easier.
First, he talked with Artoria and Jeanne, he asked these two girls to visit a certain faction, and try to make a partnership, or even subjugate a 'being' that would be of extreme importance for his plans in the future.
Since Saeko was just an ordinary human in this world, he just told her to focus on her training with the Murasame, and once she had mastered this sword, he would send her on a mission.
Seeing that all his girls had something to do, Altair knew it was time to act, so without much thought, he teleported to a random part of the underworld.
"Looks like it will take me some time before, I find her..." Altair said with a self deprecating smile on his face.
He couldn't sense the presence of his 'target', so it was practically impossible, for him to teleport to her exact location.
"Looks like I can only search for a few nobles..."
With this plan, he logged began a search in the underworld, and he had to admit, the fact that he was strong is really amazing, as there was no devil that could resist his pressure, and the vast majority opened their mouths the moment he showed overwhelming strength.
It must be said that Altair was much stronger than when he entered his first dungeon, of course, there weren't many level increases, but his True Longinus, became more powerful, in addition, he now knew exactly how to use the abilities of his spear.
But, he also realized that for quite a while, he could not use the forbidden skill of his Longinus, probably because he had used a large amount of power in his first dungeon.
After all, even though the first dungeon was a relatively weak world, he still used the power of the Longinus to kill all the zombies in the world, which accounted for 60% of the world's population, plus the Longinus also healed all the diseases and wounds of the people, which used up a huge amount of power.
So at least for a whole year, he couldn't use this ability again. Which being honest, was not a big problem for Altair. He had plenty of other skills he could use in this world.
"The information those devils have, is really incomplete." Altair thought, as he looked at the devil in front of him who was staring at him in terror.
This devil belonged to the Leviathan clan, moreover he was one the upper echelons of his clan, but today all this seemed useless, because just as he was going to sleep, he felt someone grab him by the neck, and right after that this devil was brutally beaten by an unknown person.
And if this was not enough, every time he delayed to answer or hesitated, he would be beaten again, a really bad day for this devil.
The person responsible for this beating, was looking at this devil coldly.
"You really won't say..." muttering those words, Altair summoned True Longinus, causing the atmosphere to change completely.
It must be said that the True Longinus, is the most powerful weapon against devils, as it can easily decimate them with a simple scratch, in his fight against Riser, he was unable to show the full power of the Longinus, as it seemed that it had not yet fully accepted him.
But now, he had full control over the spear, which made him the devils' greatest enemy, after all, with Altair's strength and that spear, he most likely can kill all the devils in the world.
The devil's eyes twitched at the sight of this spear, as a high level devil, he knows that this spear is True Longinus, so all the will to resist that the devil still had was gone, and now he was telling Altair everything he would want to know.
Altair listened quietly to everything the devil was saying, and he had to say, this devil really kept some good information, of course, a lot of it, he still knew, but some of it was still useful.
He found out that Ingvild Leviathan, was still in the underworld, moreover, recently she was causing some disturbances in the place where she was in a deep sleep.
Altair knew that these problems were probably due to his Longinus, Nereid Kyrie, who could control any dragon, even the dragon gods, which shows how strong this Longinus is.
Of course, Altair still had some doubts whether the dragon gods would listen to Ingvild's commands, but he knew something, even if the dragon gods were not controlled by her, they still would not attack her. Which was already an amazing feat.
Altair knows that he could not miss the opportunity to have Ingvild Leviathan in his group, besides, he now had plans to create his own faction, so naturally, he would need someone like her, who could control the dragons.
He was even imagining himself in a battle with thousands of dragons as his allies.
The devil said in the end, that he didn't know where Ingvild was, but that Sirzechs or some elder of the Leviathan clan would probably know.
Altair dismissed the idea of some elder of the Leviathan clan saying something, besides, he doubts that he can find any elder of the Leviathan clan, since these beings, were always in hiding, while increasing their strength, and usually only appeared when the clan was about to face extinction.
"Looks like I can only go with that..." With that thought, he soon disappeared from this high level devil's house, and since he was not an idiot, he finished this devil off with a True Longinus swing, making the devil evaporate as if it never existed.
Altair after three years in the apocalypse, has become a person who makes quick decisions, and usually prevents them from escalating into bigger situations, besides, he knows that if he left this devil alive, he would only have problems in the future.
Since this devil could tell some elder of the Leviathan clan that a human was after Ingvild, and soon after this many problems could arise, which would only bring headache to Altair.
Soon, he arrived at the residence of the Gremory clan, and he didn't have to wait long, and soon he was greeted by Grayfia who was looking at him in surprise, after all, she never expected this 'guy' to visit her husband's clan.
"Altair-sama, what can I do for you?" Grayfia asked in a respectful tone, especially when she saw the spear in Altair's hand.
She had a feeling that he was not here to do something good or just to pay a simple visit, especially when he was walking around sporting the True Longinus, the most lethal weapon for devils.
Altair saw Grayfia's gaze on the spear but he could care less about that, and actually started talking.
"Actually, I came to propose a simple agreement..."
Grayfia was surprised by this initial speech from Altair, but before she could respond, he went on to say.
"I want Ingvild Leviathan, I know Sirzechs probably know about her, after all, he is the Maou, and don't ask me what I want to do with her, just give me this girl... in return, I will speak in favor of the peace treaty, which he is talking with Azazel."
Grayfia listening to the deal Altair said, had strange eyes, she had already heard Sirzechs speak the name of this girl, Ingvild, but she didn't pay much attention to that, since she only knew that this girl had the sleeping sickness, and that was all she knew, so she was a little curious to know why Altair wanted something with this devil.
But what surprised her, was the fact that Altair knew about the peace treaty Sirzechs were negotiating with Azazel, you have to know that this was something confidential, and no other being knew, besides some high-ranking people from a few factions. So how could a human like Altair know about it?
"Just tell Sirzechs what I told you... Besides, I hope he will accept it... After all, I don't want to have to use force..." Saying the last part of his sentence, Altair's spear emitted a faint glow, making Grayfia's body shudder.
Moreover, she was shocked, she the strongest Queen in the underworld, trembled over the spear wielded by a human, but she knew the reason for that, this spear most likely could sweep her from the earth easily.
Seeing Grayfia nodding her head, Altair withdrew from the underworld, he knew that Sirzechs would soon visit his home, so there was no need to stay here anymore.
