She's not very confident and definitely not good at making conversations, but she's trying her best. Undyne is trying to take monsters out of the underground since she's the royal scientist, but deep down, she doesn't wanna hurt anyone, even humans. She's a sweetheart and is extremely smart. She stutters quite a lot and is a disaster lesbian. Undyne has her insecurities but she's trying hard not to give up hope. She's a total nerd and has a huge crush on Alphys, the head of the royal guard.