Ryuko Nizuna

Ryuko Nizuna (Japanese: 竜煌ニズナ) is a Japanese virtual YouTuber affiliated with the VTuber agency Stella lab (ステララボ). Nizuna is presented as a shy police officer and opens with the catchphrase "All clear today!"

Profile

Item	Detail
Debut	August 1, 2026 (listed stream start date)
Agency	Stella lab
Fan name	Nizunā (#ニズナー)
Fan mark	Dragon and necktie emoji
Stream tag	#ニズなう
Fan-art tag	#ニズナート
Clip tag	#ニズナハイライト

Career

Ryuko Nizuna belongs to Stella lab, a Japanese VTuber agency that has been active since March 2025. The agency's stated goal is to create new kinds of "fun" and give its audience top-class entertainment. Stella lab launched with three debuting VTubers and has since released several series of debut goods. Its official website lists Nizuna on the talent roster next to other members such as Kuroki Homura.

A VTuber profile database gives August 1, 2026 as the date Nizuna started streaming. The official YouTube channel still uses the label "new VTuber" in its title. On YouTube and X, Nizuna uses the English romanization "Ryuko Nizuna" next to the Japanese name, and the X account is linked from the YouTube channel description.

Activities

Streaming style

Nizuna streams mainly on YouTube. The channel introduction describes the plan to take on, together with viewers, many things Nizuna could not experience before, and to discover dreams and special skills along the way. Streams are listed under the stream tag #ニズなう. Viewers are encouraged to post fan art under #ニズナート and to share clips and highlights under #ニズナハイライト. Another profile description calls Nizuna a shy police officer who also works as a VTuber for "a certain company." This framing connects the police character with Nizuna's role as an agency talent.

Nizuna's fans are called "Nizunā," a name formed from the talent's name. The fan mark combines a dragon and a necktie, which links the character's dragon theme with the police officer uniform.

Characteristics

The main traits of the character are shyness and a police officer setting. The opening line "All clear today!" (literally "no abnormalities today") is a play on a phrase used in police patrol reports and serves as Nizuna's self-introduction. The kanji at the start of the family name means "dragon," and the official channel and social media profiles use dragon emoji throughout. The character's stated aim of finding new dreams and skills through streams sets up the channel as a record of first-time experiences shared with the audience.