-ERROR

Background
"-ERROR" is a powerful rock song, with vague lyrics that are open to interpretation. It is one of niki's most popular songs. A well-tuned Namine Ritsu cover of the song by kyaami (cillia) brought attention to the song. It was popular enough that KARENT licensed a single to the song "-ERROR", however, with Namine Ritsu as the vocals, not the original sung by Lily.