@Kaya
Spoiler!
In short he wants to control yuria body on its strongest state and with yuria body defeat demon king and become the strongest
This world shall know chaos
Spoiler!
https://www.youtube.com/watch?v=51WdB41vpD0&list=PLEyDgnl0zrBjq5InA_-6cFLFEBYIEirLB
Spoiler!
https://www.youtube.com/watch?v=zRT_yATGClo