Kizuna Ai is a pioneering virtual YouTuber, credited with popularizing the VTuber concept. She first appeared in 2016 and quickly gained a massive online following due to her engaging personality and innovative content. Kizuna Ai is known for her virtual avatar, created using motion capture technology, which allows her to interact with fans and create a wide range of content, from gaming to music. Her influence has inspired countless other VTubers to enter the scene.