Despite the fact that GBC had a couple of collabS with mYgo, I think anime is more similar to mujica.
Like the dolls that symbolize the struggle against fate or submission to it, and not only fate, but basically everything like fears and so on. Will Nina do as she wants or will she do what her father wants?
Or stage names, that many people ignore in mujica. Nina made t-shirts for herself, Subaru and Momoka that had "names". And for example Subaru's t-shirts had "liar" name. And these "names" are very similar to mujica, we can say that these names are the main themes of the characters

And it's really interesting considering that GBC was released last spring, and mujica in winter of this year. Kakimoto mentioned the GBC a couple of times, and it shows that the issues this both anime was talking about are very important for Japan