Gawr Gura is an English Virtual YouTuber (VTuber) associated with hololive as part of its first-generation English branch of Vtubers alongside Calliope Mori, Kiara Takanashi, Ina'nis Ninomae, and Amelia Watson.

From her hololive profile page:
A descendant of the Lost City of Atlantis, who swam to Earth while saying, “It’s so boring down there LOLOLOL!” Gura bought her clothes (and her shark hat) in the human world and she really loves them. In her spare time, she enjoys talking to marine life.