So blue is mentally unstable and has outbursts smoetimes but theres a story behind this.when she was young her brother never cared about her and always put her last,but she always tried to help,she was lost for 10 years with her best friend mint,and her brother abused her for it,so she left.she is depressed and always has some sort of chipped bone or has cuts,she always put others first like her friend inku.she just wants to be remembered as a great friend,and always tried to find a way to kill herself if she is alone or her feelings are hurt badly.