Put it at the very end of a reveal, after the visual lands and before the next scene starts. Build tension first with Sudden Suspense Sound Effect, then let this clip close the moment. For a failed guess, follow it with Wrong Answer Game Show to underline the miss.
About this sound
This 1.7-second voice clip is a formal Japanese announcer saying the name Kobayashi Seiyaku in a crisp, clipped delivery that ends abruptly. It feels dry, surprising and faintly absurd, like a straight-faced sponsor announcement dropped into the middle of a joke. The line comes from television commercials for Kobayashi Pharmaceutical in Japan.