Practicing in the Arms of My Junior Sister, I Became the Demon Emperor of All Dharmas

Ye Chen is eighteen years old this year. After traveling to the fantasy world, I found that I had passed through the body of a big demon. Forget it, let's just be a big demon, it's better than being a karma. But what's going on? By chance, Ye Chen suddenly found that he had started a new life. In the arms of my junior sister, my cultivation is rising? And this achievement system, doesn't it force you to cheat? Now let me see who dares to say that I am a loser! ! ... Thousands of years later, "Today's Demon Emperor lecture is about sharing the experience of so many years of cultivation!" "So good!" "Ahem, everyone is welcome to listen to my story. It's a long story. In short, I am where I am today thanks to my junior sister..." This book is also called: "Falling in Love with Junior Sister?" No, no, no, I'm just here to practice", "This system is not serious"