Somewhere in Underworld.
"Your job is so simple, really. You just need to watch over the 'tool' at all times, yet you're telling me she's gone?"
In the dimly lit room, there was a body laying on the floor covered in his own pool of blood, yet he was still alive and was groaning in pain. He couldn't give an answer even if he wanted to, his throat was crushed the moment he reported the news. He was one of the mid ranked devil so his body was much tougher than normal, thus, the injury he received merely a punishment. After all, he had ditched his job temporarily to attend a party, and in turns, somehow lost his target.
"That little crimson brat comes to me earlier, he seems to know something about this since he left me a warning. Haha, isn't that funny? That child who couldn't even look at me in the eyes in the past was staring at me courageously. He had truly grown up to be a fine devil, a shame that his familial love for his little sister blinded him."
A calm voice reverberated through the room, then a figure slowly emerged from the shadow, his appearance made clear. He seems to shared similarities to Vali, but it was a middle-aged man in his 40's with dark silver hair and hazel eyes. After all, this is none other than Rizevim Livan Lucifer. The living son of the actual Lucifer and Lilith, he carried with him a certain oppressing charm that unlike any other high ranked devils could match. Some might even mistake it as the aura of Satan, but nowhere as intense as Sirzechs.
"Am I being too lenient to you? I mean, you did ditched your job after all, though that's something you expected from devils so I can't really be upset at you. On a second thought, you did good." Rizevim said with a natural smile on his face. "Sure, the plan to brings back my mother might be pushed back, but that's alright. Things happened, no? You will just have to make up for it."
"Cough cough! I..I will! I swear on my clan!"
When his throat is close to recovered, the man finally responded after coughing more blood to the floor. He remained on his knees, not daring to even look up and just stares at Rizevim's feet. Although the Son of Lucifer might seems considerate, he was the further from that in reality. He truly believes that devils must be evil, wicked, brutal, bad, scum, wrong, brute, and vicious. Thus, his kindness act was only a show, like how a wicked person knows to take advantage of being good. If anyone dares to underestimate him, that means their fate had been sealed.
"Good, now scram and get going." He shooed the man away before snapping his fingers as maids dropped from the ceiling and quietly clean the blood on the floor in just a few minutes. Meanwhile, Rizevim simply stares outside the windows as he was left to his own thoughts. He knew Sirzechs had invited a human to his estate, which seems peculiar since there are rarely any humans worth the attention. What's more, this one looks particularly young, somewhere around the Gremory's princess age.
Obviously Rizevim had spies planted everywhere, so he was immediately informed at the slightest changes. He didn't think much of it at first, but when his subordinates brings the full details about Igarashi Kousuke, he quickly changed his mind. From beating his grandson, Vali, to having a spar with God of War from Greek Pantheon. He couldn't understand how Loki had failed his mission in disrupting the peace treaty between the three factions back then. But now, it all made sense.
Everything that had gone wrong seemingly connected to this human. He was always at the center of it, shining so brightly that he might even devour the sun itself. This was in irregular that Rizevim had never seen before. No, it reminds the Son of Lucifer of a certain man in the distant past. One who had strength so great that he could tour the Underworld as he pleased, it was none other than Solomon.
But as great as he was, the man couldn't escape his mortality and eventually succumbed to old age. That was one of the greatest news Rizevim had ever heard of, he even made the whole devil society celebrate it as some kind of holiday special. It was a very happy occasion, nothing from then on could top that. Not even the Great War that would marked the death of Biblical God.
Now that he had lost Sephiroth Graal, whom he had guessed was rescued by Kousuke, or maybe someone close to him, his plan hit another roadblocks. Rizevim's goal was to use the chalice to revive the remain of his mother, Lilith's flesh. It wouldn't be the same person, but at least he would had another card to his sleeve. With this setback, he will have to go to plan B. Seeking the location of the sealed Beast of Apocalypse, 666(Trihexa), the one that caused the death of the Biblical God. Why would he seek something like that? It's simple.
He is a devil, true to his blood. What are the devils supposed to do, if not seeking more chaos and destruction? For Rizevim Livan Lucifer, that was the ultimate goal that all devils must strive for. Not the rotten peace that only dull their fangs even more, absolute act of mockery to the whole race that was created solely to sow more disorders to the world.
If he can't produce powerful devils from the remain of his mother, then he can simply 'collect' an old relic awaiting for him. Then, the world will bask upon the most beautiful 'firework' that none had ever seen before. Toward that end, Rizevim won't stop at nothing to make it a reality. After all, it was the very reason he was born. Furthermore, he looks forward to the day 'heroes' stood before him. And that day will come, sooner or later.