The line comes from Pecorine, the cheerful heroine of Princess Connect! Re:Dive, whose voice and catchphrases spread through game clips, anime edits and fan videos. This short version is taken directly from Shadowverse, where the character also appears, making it easy to reuse as a standalone reaction sound. Because the Japanese phrase can mean both dangerous and amazing, depending on tone, creators use it for moments that sit between trouble and excitement, which keeps it useful long after its original scene.