If you are developing a tool or app for fans of the series, here are a few feature concepts based on the lore:

:(e.g., a "mission log" system or a character relationship map).

: Are you building a reader, a media manager, or a game? (e.g., adding automated translation, metadata scraping, or character bios).

: A database of the seven main girls (Lily, Grete, Sibylla, etc.) and their unique abilities, such as Lily’s poison immunity or Grete’s disguise mastery.

Let me know and what you want the feature to do , and I can give you more specific guidance! Spy Classroom (light novel)

: Do you need help extracting, organizing, or automating something related to the .7z file? Potential Feature Ideas

: Since you mentioned "JP," a feature that helps users practice Japanese by highlighting vocabulary from the series' light novels or subtitles.