Help me find this manhua/webtoon/manfa

The story is about the FL with three men who is inlove with her. They defeated the demon king and the fl was sick for a week or so. When she woke up, all three guys fell out of love with her and pursued another girl who i think is hypnotizing these three guys or enchanting them with her tea. Then this FL met the demon king that was supposed to be dead. The demon king was alive and had no recollection about being the demon king or being killed by the FL. The demon king now works for the FL and i think they're going to be together but I don't know anymore because i didn't remember it's name ╥﹏╥