CastSpace Debuts VTuber Shiranami Sazame With Voice Introduction Video
CastSpace is placing a new talent on VRChat rather than a conventional streaming setup, using a customized base body from group company U-Stella, which ties the debut to the group's avatar and VR businesses.
Reporting from 2 sources: ASCII.jp, PANORA.
CastSpace released a voice-equipped self-introduction video on the evening of Friday, October 9, 2026, for its newly signed VTuber Shiranami Sazame. The character is a former whale shark whose hometown is the aquarium and the electronic sea. Her planned activity is casual chat, ASMR, illustration, game streaming, and song covers, with VRChat as her base platform.
Shiranami Sazame, described as a former whale shark from the electronic sea, gets a self-introduction video with voice at the same time as her signing is announced. The clipped profile lists a broad-minded personality, a tail as her charm point, talking and illustration as strengths, singing as a hobby, and fish and sushi as favorite things, with nets and bitter greens on the other side. Her fan name is Keeper-san.
Her avatar is a customized form of the 3D model Lumia, produced and sold by U-Stella Inc., a company inside the same group as CastSpace.
Synthesized by Yomimono from the 2 cited sources below, including Japanese-language reporting where cited, then editorially reviewed before publishing.