Sinder is a female English independent VTuber who primarily focuses on streaming on Twitch. Bio. She's a fiery wolf girl who was banished from Hell for beingTwitch VTuber Sinder found herself at the center of a harassment campaign on Thursday. Her crime? Daring to have fun and try new things.Sinder is an American independent Vtuber who illustrates a Hellhound character. People are curious to know what she looks like in real life.Sinder (birthday: September 14) is an American independent VTuber. 