>>715966414 (OP)Gustave is great and I thought that both Sciel and Lune had solid chemistry with the male leads. I don't think that characters need to be great individually, rather they need to have a good party dynamic. The interactions between Gustave and Sciel did a lot to improve her standing in my eyes.
Monaco is the weakest party member because he is played as a joke more often than anything else. Maelle is second weakest because she feels more like a plot device than a real character.