The phrase sus became widely used online as shorthand for suspicious after Among Us popularised it in 2020, and editors quickly paired it with dramatic cues borrowed from manga and anime storytelling. Clips labelled Sus Manga spread on soundboards and short form video as a reusable reaction sting rather than a track from a single named series. Its appeal comes from that instant recognition, viewers understand a character is lying or hiding something before any explanation is given, which keeps the joke fast and portable across edits.