A cuteness fang is a single prominent canine tooth that suggests a cat-like and energetic nature or a state of excitement. Cuteness fangs generally belong to the upper jaw. Despite being clearly visible to the viewers, they tend to not actually exist in-universe; as a result, they do not interfere with mouth functions and go unnoticed by other characters. They are generally seen on females, but they can also occur on males. A cuteness fang is distinct from and should not be confused with fangs, which are multiple prominent canine teeth, as found in vampires or various animals, or a misaligned tooth, which is a facial misfeature with no relation to personality traits.