The cast of characters consists largely of parodies of real German politicians and public figures from the early 2010s.
If you have stumbled upon the cryptic keyword you are likely already aware that you are dealing with one of the most bizarre, niche, and surprisingly complex visual novels to emerge from the German indie scene. For the uninitiated, Unteralterbach (often stylized in lowercase) is a satirical, adult-oriented kinetic novel set in the fictional Franconian village of the same name. The "21" in your search refers to a specific community-driven challenge, a completionist run, or a particular fan-patched version—depending on who you ask. unteralterbach 21 guide
: Small, seemingly insignificant clues often hold the key to solving larger puzzles. The cast of characters consists largely of parodies