Place it immediately after the false claim appears on screen, then follow it with Nelson Ha Ha for a second reaction, or open with Ceeday Huh when you want a beat of disbelief first.
關於此聲音
This is a brief Spanish voice clip, lasting about four seconds, in which the speaker says “mentira” and then bursts into mocking laughter. The tone is instantly dismissive, as if someone has just been caught inventing an excuse. It feels teasing, sarcastic and playful, turning disbelief into a joke rather than an argument.