It looks like you're referring to an article or a title involving and "Doshikoru Gang of Lus..." — possibly a misspelling or partial translation.

From what I can gather, this appears to be related to a niche or fan-made magical girl series, possibly from Japanese or Korean web novels, indie manga, or a dark subversion of the magical girl genre (like Magical Girl Raising Project or Magical Girl Site ). The name "Samariel" sounds angelic or occult-inspired (similar to Samael in some traditions), which fits the trend of "fallen" or "cursed" magical girls.