Raora explains the hand thing to Biboo [Koseki Bijou Animated]
youtu.be
Source: https://www.youtube.com/watch?v=UwEjWQfFYjEKoseki Bijou Ch. hololive-EN / @kosekibijouKaela Kovalskia Ch. hololive-ID / @KaelaKovalskiaRaora Pan...