Because this will cause alot hurt and possibly betrayal to the rest of the Loki Familia. When they find out that Ais went behind their backs and asked their greatest rival for top Familia in Orario for training. Exchange for a favor. I think the Loki Familia is going to be annoyed for Loki making Freya a promise. So how is the Loki Familia going react to Ais' favor and Loki's promise and when they are going to find out? Also how are they going to find out?