Mewy is a nurse/security robot that has a kind heart only to those who cooperate with her whenever she gives patients medical shots
She is has a program error that makes her go into security mode sometimes out of nowhere, with chainsaws and saw blades and other sharp objects coming from her back.
Mewy has a storage in her body to carry all sorts of medical tools, but her main one she uses is the syringe, she tries to convince kids that needles aren't scary, hints why she looks like a cat.       