Sister Claire is a Japanese VTuber affiliated with Nijisanji. She made her YouTube debut in June 2018 and quickly gained a following, reaching milestones such as 10,000, 20,000, and 30,000 subscribers within the first month. Sister Claire's popularity continued to grow, and she became affiliated with Nijisanji in December 2018. Over the years, she has reached impressive subscriber milestones, such as 100,000 in March 2019 and 400,000 in December 2021. Sister Claire is known for her proficiency in sign language and often streams using her 3D model to communicate through sign language. She is an active member of the virtual influencer community and has participated in various events and collaborations, including being the voice actress for the character Seto Mitsuki in Bandai Namco Entertainment's dance music project, DEN-ON-BU. Sister Claire's engaging personality and dedication to her fans have solidified her position as a prominent figure in the world of virtual influencers.