"You want me to be your slave?" Siria glared fiercely.
Up to now, only others would become his slaves. When had he ever been someone else's slave? And even if he were willing, who would dare want a demigod like him as a slave?
Ordinary slave chips were at most only able to control martial artists below the level of Transcenders. For martial artists above that, it was necessary to use a soul contract for control.
This soul contract was something passed down from the Root Universe, and its essence was a type of runic pattern. Only powerful runic masters from that era could possibly inscribe such a soul contract. However, these things were incredibly expensive. Even back then, Siria had paid a great price to acquire just a few.
Of course, within cosmic civilizations, there also existed some secret techniques from the Root Universe that could establish a soul contract without using runic patterns, but such things were almost never shared.