Harada said that Lili's Mother wasn't mentioned because she was a terrible person. There was no specification on why that may be because story telling is the worst I've ever seen in my life. I decided to add her in name only just to deal with them since it's controlled from the start. Even if you want to defeat the enemies outside of the main roster in cutscenes or Pachislot exclusive games, Bamco including Harada will only restrict you in going up against those they only want you to fight. From the beginning of the series, everything was entirely rigged from the start and its too bad nobody will see it that way since that's what I'm REALLY seeing them do. I have provided actual fights against the bad guys outside of the main roster and delivering real solutions or justice instead of having bandages. Enjoy!