Place it at the end of a failed suggestion, then follow it with the Nope sound for a second refusal, or start with the No God Please No sound when the rejection needs to build up first.
关于此声音
This is Flowery saying no three times in a row, a short voice clip lasting just over a second. The repeated refusal sounds firm and exasperated, like a character shutting down an idea before it can go any further. It comes from Deltarune Chapter 5, where the character delivers the line in a sharp, unmistakable voice.