Quick Transmigration: A Life Turned Around After Binding to a System

I skipped through the beginning of this and watched the two worlds of EM. The male protagonist in the small world felt lust for the female protagonist. I didn't see how much he liked her. It was all about physical harmony. I've read the introduction several times. Is this book purely about the heroine's strategy mission? I watched the female protagonist not only doing exercises with the male protagonist on the bed, but also doing other things to avenge the original protagonist in a very concise and clear way. Each world is short and has average content. (No harm intended) By the way, what is the author writing about in the next world?