Neru Mikamo is a character in Blue Archive, Nexon's mobile role-playing game first released in Japan in 2021, where short voiced reactions like this one are used for student interactions and story scenes. Fans began clipping individual lines and sharing them on soundboards and in short-form edits, where a single annoyed reaction could carry a joke without needing any dialogue. The clip stays useful because Neru's blunt, no-nonsense personality makes the tone instantly readable, so editors keep returning to it for quick, character-driven reactions in gaming and anime content.