Hakase Fuyuki

Who is Hakase Fuyuki?

Hakase Fuyuki is a Japanese VTuber and singer affiliated with NIJISANJI (ANYCOLOR). She debuted in July 2019 and presents a high school scientist persona who loves experiments and carries mysterious chemicals.

Her streams and music are primarily in Japanese. Her official profile lists her birthday as February 19 and her fan name as Labmen.

Creator & studio

The character design for Hakase Fuyuki is credited to vane. She is managed as part of the NIJISANJI project operated by ANYCOLOR.

Hakase debuted alongside Kagami Hayato and Yorumi Rena as the trio known colloquially as SMC-gumi. Her 2D and later 3D model updates have been released through NIJISANJI events and streams.

Visual style and aesthetics

Hakase is drawn with pale silver hair in twin tails and striking red eyes. Her default look pairs a school-style outfit with a white lab coat and lab-themed accessories.

Design details often reference her scientist motif, including hair clips and signature marks that echo mathematical and scientific motifs.

Content Type & Format

Hakase Fuyuki's content centers on live streams on YouTube, including long-form talk streams, gaming sessions, and watch-along style playthroughs. Her YouTube channel hosts archives of these broadcasts as well as premiere videos.

Hakase Fuyuki's personality comes through in regular singing content and music videos; she performs cover songs and original releases both in standalone videos and as part of music units. She also runs drawing and creative streams where she sketches and discusses fan art.

Her content tone is friendly, often playful and self-deprecating, with frequent audience interaction through chat, membership features, and social posts on X. Hakase Fuyuki's content mixes entertainment themes such as experiments, food talk, and late-night casual conversations.

Hakase Fuyuki Collaborations and Campaigns

PRiSM: ▽▲TRiNITY▲▽ x NBCUniversal Entertainment Japan — Released in 2021 as the unit’s first album. The campaign supported a major-label release with online promotional events and music videos featuring the group's performances.

Kizuna Rail / TV anime tie-in: 森中花咲 meets ▽▲TRiNITY▲▽ — In 2021 Hakase and her unit contributed to the ending theme for the anime Shinkalion Z, released as a single and promoted with a dance movie and tie-in music distribution.

Δ (DELTA) / 2nd album: ▽▲TRiNITY▲▽ x NBCUniversal Entertainment Japan — Released in 2022, the second album featured multiple external producers and was distributed in physical and digital formats with standard marketing and retail tie-ins.

▽▲TRiNITY▲▽のTHE CATCH: ▽▲TRiNITY▲▽ radio program on JOQR — The unit hosted a regular radio show that served as ongoing promotion for music releases and fan engagement through scheduled broadcasts.

Persona and audience fit

Hakase’s on-screen persona blends a curious, experiment-loving high school character with a warm, approachable streaming style. She often emphasizes humor, food talk, and casual confessions during late-night streams.

Her mix of music, gaming, art streams, and interactive chat makes her a fit for collaborations with music labels, anime projects, and entertainment brands targeting young Japanese audiences and VTuber fans.