When Kyran turned 18, his life turned upside down. The Royal Army raided his clan because his supposedly non-existent magic got exposed. On that fateful night, he was the only one who escaped. Up to the present, the status of his clan was unknown. A magic inheritance that became a curse, Kyran became a fugitive. Always on the run... living in fear when the Royal Army finally captures him. At least that's what most people thought... "I'll definitely save my family. And I will make all those who made my clan suffer pay tenfold. I'll make use of this magic they so feared, and show them what real terror is...." Disclaimer: The cover image isn't mine. I'll replace it when I finished mine.
Axil and Loar came up with a theory or two as to how Flos's and Obstruction's planes fell under Kyran's protection even though he was not a Sovereign. The first theory had something to do with his innate magic.
The nature of Void magic had always been up for debate because of the lack of information about it. Up to date, the only ones who got a better understanding of it were Axil and a few other members of the Guardians who worked with Kyran on a mission during his stay with them this past year or so.
Axil and Loar were quite familiar with the Void's nothingness nature. Kyran even displayed it splendidly when he defied all common sense and ignored the Fates' influence. In any case, this particular nature of the Void magic could be why the planes under Flos and Obstruction fell under Kyran, though he was not a Sovereign.