GusaoFanfic, x Reader & AI Roleplay

Gusao is a streamer known mainly for video game commentary. He gained popularity through "yukkuri" style commentary videos featuring titles such as Splatoon and Animal Crossing: New Horizons. He initially performed with processed audio, but later revealed his natural voice, which confirmed that he is male. In 2025 he began activities as a VTuber under his own production, debuting as the girl character "Saegusa Rin." The avatar is a girl, while the person behind it is male.

His appeal lies in the background of being widely enjoyed for yukkuri commentary across a range of games, and in the way he expanded into VTuber activities after revealing his natural voice. His style, in which he performs a self-produced girl character, is characterized by the gap between his position as a commentator and the avatar he portrays.