Isn't it kinda really sad that usagi was just a shell for serenity
I’m not sure I agree! Even if Usagi started as nothing more than a host body to a reincarnated soul, she has gained a powerful personality, and her convictions are so strong that she can stand up against Serenity’s wishes for destruction. Usagi inherits Serenity’s problems, but handles them in a different way. I don’t think that Usagi is merely a shell for Serenity; I think she’s a second chance to do things right.