Debut date Jul 7, 2018 Fanbase name Sasa-kids Illustrator Yasumo Profile (Nijisanji) | YouTube | Twitter | niconico Saku Sasaki is a female Japanese Virtual YouTuber and a member of Nijisanji (formerly of Nijisanji Gamers). A sophomore high school student from Kansai with a laid-back attitude and a love for video games and aquariums. Her favorite animals are pandas and Japanese pancake devilfish. She had retired/temporarily shut down her channel in November 2018 for undisclosed reasons, but resumed her activities 2 months later in January 2019.