Finana Ryugu is an English-language Virtual YouTuber, affiliated with NIJISANJI EN. She debuted as part of the branch's 1st wave, "LazuLight".

Her bio on the official NIJISANJI site describes her as follows:
"A mermaid spending time with tropical fish in the sea of coral reefs.
Has a heart as clear and pure as the calm and beautiful sea." Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.