There is already have an ENDING at Chapter 11, Anne caught Tony fucked her best friend - Nicole on their Marital bed, if the Love point of them below than 4, Anne will get MAD and talk with Tony about it next day. U can choose Tony refuse/reject Anne's request, then Anne will divorce with Tony. Tony can choose together with Nicole or Emma or Chloe or Kelsey or Tiffany after divorced with Anne. But NO HAREM, because only Anne will agree Tony with HAREM life, other girls wouldn't allow Tony fucking other girls (maybe Nicole will agree as she also similar to Anne). Anne will be together with Martin or Dre or other guy, of course Anne also no more HAREM life.
So if u want MC have HAREM life only possible if MC together with Anne.