Undertale

Undyne is a fish-like humanoid monster, having royal blue scales and a long bright red ponytail. She always shows a pair of protruding teeth along with fins on the side of her head. Undyne also wears an eyepatch over her left eye, meaning that she lost it or just uses it for her own taste. However, she also has yellow sclera. Undyne wears her usual clothing: a black jacket over a white shirt, blue pants and dull red boots with one yellow stripe at each edge.

She is loudmouthed and hot headed with brash personality however she can also be friendly, honorable and honest to everyone she meets, especially Papyrus, Alphys and the Royal Guard, all whom she regards as her friends. She is selfless, Undyne is also encouraged and competitive as shown when Papyrus said she's "not up to the challenge" at having Frisk as her friend and realized that having them as her friend would be her "ultimate revenge". Despite that, Undyne always keeps her kind attitude and cares for those who she considers her friends. She is secretly in love with Alphys, the royal scientist of the underground who also shares the same feelings towards Undyne. The only person she hate is Dust who she is currently hunting.

Undyne is a royal guard captain tasked to hunt human. She is friend with papyrus whom she always train so he can be a royal guard.