Use it as the opening stamp in a plush-centred edit, then follow with the Tuturu sound for a second reaction and the Anime Ahh sound when the reveal turns into surprise, keeping it first so the joke is clear before the other reactions arrive.
关于此声音
This is a half-second vocal squeak linked to Fumo, the Touhou Project plush dolls, popping up and vanishing before it can become a line. It feels instantly cute and silly, turning a plain reveal into a playful joke that fans recognise at once, while newcomers just hear cheerful absurdity. It grew out of Touhou fan edits built around the plush toys.