Sayu Sincronisity, formerly known as Sayu Okami, is an English-speaking independent Virtual YouTuber (VTuber) who debuted on August 19, 2021. After graduating in October 2022, she re-debuted as Sayu Sincronisity on December 21, 2023.

Sayu primarily streams on Twitch, engaging her audience with a variety of content, including gaming, handcam streams, ASMR, karaoke, and more. She is known for her comedic approach and diverse streaming activities.

Her character is a half-android, half-human who harbors a disdain for modern technology, adding a unique twist to her persona. Sayu’s fanbase is affectionately called the “SincroKnights,” and she often uses the hashtag #sincronize to connect with her community.

In addition to her streaming activities, Sayu maintains an official website where fans can access her latest content, purchase merchandise, and support her endeavors. 

Sayu’s engaging personality and diverse content have garnered her a significant following, with 124,000 subscribers on YouTube and 142,301 followers on Twitch as of the latest available data.