He finished his study on nanomachines and went on to join Solaris. There he won Emperor Cain's attention. He also won Miang's and the Gazel Ministry's. Cain was manipulated all along, he thought that Krelian was an ally in freeing humanity from "the bounds of the system" (from Deus), but Krelian was doing whatever he wanted. Cain offered to him his body for experiments so he could investigate on him to free humans from Deus, but Krelian took the oportunity to take Cain's DNA to clone him. He also altered Cain's flesh, and he weakened. Krelian was able to create a life support nanomachine system for him.
Not only did Krelian manipulate Cain, who was a god, but also kept him around as a puppet to control the masses. He was raised to the possition of Ministry of Defense of Solaris, but he was governing the whole country behind the shadows. Better said, he was governing the country that controlled the whole planet behind the shadows, behind the shadows. Cain was more a public face, and the Gazel Ministry more or less payed attention to him, and so did Miang (who was actually the closest to a true ally he had and not a puppet). He put nanomachine Limiter in all people on the planet using food to distribute them in an effective way. The Limiters limited their physical and psychological prowess. The people wouldn't be able to unleash their whole potential, and the psychological Limiter made them feel awe and fear of Cain and the Gazel, paralyzing them and making them follow all their orders (basically creating a "god effect").
He also controlled the whole world via Solaris, the kingdom of Aveh was controlled using Gebler's militrary enforcement (and later Shakhan, who was secretly a bishop of the Church, but he was a traitor) and Kislev using a remnant faction of the Church that remained very influential in politics. To resurrect Deus, he engineered a war between this massive countries to collect data on human abilities. He used Gebler's military support of Aveh, and Miang's (as the Executioner) contact with Kaiser Sigmund to provide Kislev with weapons. That way, the war was kept stable and long-going. Also, he could manipulate information and worldy affairs through the Church, control food suplies and have an ever growing slave supply flowing to Solaris. Uppon Solaris' destruction he engineered a nano-virus that spread around the planet and turned many people into Wels, just to increase Wel number.
His manipulation of Ramsus was always magnificent. Ramsus was the Cain clone he created, manipulated from childbirth after Krelian's calculated psychological torture. Basically, he engineered for everyone to call him a piece of shit and create a competent rival in Fei, so he could grow stronger. And after Fei had surpassed him even with his own Omnigear, Krelian decided to take out Cain by telling Ramsus to kill him (he was the only one who could do it). Ramsus did it, and after that was nearly thrown into the trash. Miang was always the biggest fish along with Krelian and was with him all along, posing as Ramsus' girlfriend only to add to the psychological manipulation. All of Ramsus' social healthy attributes and his whole psyche had been conditioned by Krelian and Miang, Ramsus was a puppet, his whole life and purpose was furthering the plan.
After the Gazel Ministry used the Goetia Key and Krelian recovered Deus' organic body, Krelian utterly crushed the Gazel's hopes of being gods and deleted them. Krelian manipulated the protagonists into going to Merkabah so he could take the Vessels of Anima and add them to Deus. After this and Miang's awakening in Elly's body, Krelian and Miang fused with Deus and began to assimilate the global population. After Deus' destruction, Krelian ascended to Wave Existence state, basically a god beyond even Deus.
