Mori should really talk to Suisei if she wants to find out what REAL friends and mentors are like. There used to be a longer translated clip out there but I can no longer find it so you'll have to make do with this.
https://youtu.be/IeFj3DKZHqUThese are Suisei's 2view friends when she was an indie before she joined Hololive. They did a live watchalong stream of her 3D concert where they were literally SOBBING for most of it, for how happy they were for her. This clip doesn't show it, the old one did, but they went on and on about how much she deserved it and how hard she worked. When in reality, they all started out as indies and all worked hard to build their vtubing careers. Instead of begrudging her the success, they came together and helped design a microphone for her 3D model that she could use, in order to acknowledge that they were still with her, even when she had risen so far beyond them.
That's what true friendship is. Suisei will still collab with them occasionally on their channels. She definitely doesn't have as much time for them as before. But they are just happy she made it.