Reimu Endou is a virtual YouTuber under the Nijisanji project, known for her soothing voice and captivating content. She debuted as part of the Nijisanji EN's third generation, Ethyria. Reimu is characterized by her calm and gentle demeanor, often depicted as a ghost girl with a passion for singing and interacting with her audience. Her role in the Nijisanji universe is to engage and entertain her fans through various activities, including gaming, singing, and chatting streams, thereby adding a unique charm to the virtual entertainment landscape.