u/Economy_Stuff3671

Is it normal that our friends appearing during boss fights or anomaly hunts?

Because while fighting black tome anomaly, jiuyuan randomly appeared and helped me.

When I fought it again(for boss materials),Hathor randomly appeared and helped me as well.

And previously, I was hunting some anomalies and fighting the nestbound bird, and suddenly, a cut scene appeared with Hotori, she stopped time and helped me and she just left.