Stepping on the demon door, the witch becomes the strongest

Introduction: In my previous life, I was half a piece short of a chess piece, and ultimately missed the opportunity to reach the top. Traveling back in time, this time... I want to be the strongest in this world! To become the strongest in this world, you only need three simple steps: Pick up the demon witch who just passed through on the street. Conquer demons. Get her training techniques. Great! Already invincible! ————————Many years later, Yanyu, who gained the reputation of “the strongest”, accepted an exclusive interview with the TV station: Host: Who do you want to thank most for your success today? Yanyu: I want to thank a woman who is very important to me. Host (eyes light up): Oh, is she your good wife? Yanyu: No, consider it a stepping stone. Host (wiping sweat): So... what about the other teammates in your team? They should have helped you too, right? Yan Yu: Ascending to the God...