Yuki is one of the main characters of the series Gakkou Gurashi and she is the one who keeps the other School Live Club members positive.
Yuki is always happy, she loves her friends and she loves her school, however she doesn't see the school for what it really is because of the delusional mind set she is in. But when things get tragic she sees what the world really is like and becomes filled with fear and goes back to being delusional once things are normal.
I don't think Yuki is a bad character because her delusional mind set helps distract the viewers from what is really going on. The other characters like her personality because as I