Mizumiya Su

Mizumiya Su (Japanese: 水宮枢) is a Japanese-speaking VTuber affiliated with hololive under Cover Corporation's Hololive Production. She belongs to the unit FLOW GLOW. She is known for her role as the unit's self-described publicity manager, her energetic on-stream reactions and her dance videos.

Profile

Item	Detail
Debut	9 November 2024
Birthday	16 June
Agency	Hololive Production (hololive)
Generation or unit	FLOW GLOW (originally the second generation of hololive DEV_IS)
Fan name	Suurisu
Character designer	Bukurote
Live2D	Otsukue
3D model	Hanechu
Language	Japanese

Career

Mizumiya Su debuted on 9 November 2024 as a member of FLOW GLOW. The unit was the second generation of hololive DEV_IS, a Hololive Production branch focused on music and idol activities. Her fellow members are Isaki Riona, Koganei Niko, Rindo Chihaya and Kikirara Vivi. The hololive and hololive DEV_IS branches were later merged, and FLOW GLOW now operates as a unit within hololive.

Hololive Production is the VTuber agency of the Japanese company Cover Corporation. Besides running a multi-channel network, it handles licensing, merchandising, music production and concerts. FLOW GLOW is one of the agency's units aimed at idol-style music and performance.

Her character also appears in Holo no Graffiti, Hololive's official short animated series. She first appeared in episode 344, which centres on her small size. She voices herself in the series. She has a 3D model in addition to her Live2D model, which lets her take part in full-body streams and performances.

Activities

Streaming style

Her YouTube channel mainly features free talk, gaming and singing streams in Japanese. Her character is the member who promotes FLOW GLOW, so social media is central to her activities. She regularly posts short videos, including dance covers of popular songs, on TikTok and other short-form platforms. Her dance content includes "dance cover" clips of fast, technically demanding choreography that she presents as challenge videos.

Her reactions on stream draw a lot of attention. Sources describe her as rarely staying still, and when startled or frightened she reacts in very physical ways, such as jumping or falling over. She has openly admired fellow hololive member Oozora Subaru. She has described Subaru as someone whose streams supported her through difficult times and changed her life, and her excitement during their interactions is a well-known part of her online presence.

Characteristics

She is the youngest member of FLOW GLOW. Her small stature and youthful look are a running theme in her content and in fan jokes, including the Holo no Graffiti episode about her size. Her voice is soft and high-pitched. She has said she studied acting from a young age, and her pronunciation is described as clear and free of a regional accent. Viewers tease her for seeming childish at some moments and old-fashioned at others, and this has become a recurring joke in her community.

According to her character profile, she is sociable and polite, never goes anywhere without her pink mobile phone, and calls her energy her "Su-charge". She is something of a gourmand, and many of her posts feature food she has discovered. Her listed likes include singing, dancing, her friends, social media, cute things and shabu-shabu hotpot. Her dislikes include having her height measured, kanji, staying up all night and insects. She is also said to be good at physical activities.