UltraLMTM is a VTuber brand produced by streamer k4sen, who belongs to the CREATOR division of the esports team ZETA DIVISION, operated by GANYMEDE. Six first-generation members are set to debut over October 5 and 6, 2026, with three streaming each night and a group program on the official channel afterward.
GANYMEDE Inc. announced on September 28, 2026 that six creators will debut under UltraLMTM, a VTuber brand produced by k4sen, a streamer in the CREATOR division of the esports team ZETA DIVISION. The six are Riina Koga Fluorite, Amari Mahiru, Yuime Yuina, Hanasake Sei, Washimi Daisho, and Yayoi Chiu. Profiles, visuals, a trailer, and X accounts for all six launched with the announcement, along with the brand's stated concept, "Beyond imagination, ideals squared."
The debut streams run over two days at 19:00: three members on Monday, October 5, and three on Tuesday, October 6, each on their own YouTube channel. From 20:30 each night, the three who streamed plus k4sen appear on a program on the UltraLMTM official channel. A later announcement on October 6 added that an official stream featuring k4sen begins at 20:30.
The operation borrows from online game updates rather than talent-agency calendars, and the arrangement places a competitive-gaming team directly into talent management rather than sponsorship. Coverage has focused on the structure and the debut schedule rather than on individual member activity.
Synthesized by Yomimono from the cited Yomimono stories below, each itself sourced, then editorially reviewed. Every fact links the story it came from.
Structured graph also available as JSON at /public/entities/ultralmtm.
CC BY 4.0.
GANYMEDE, which operates the esports team ZETA DIVISION, announced the visuals, profiles, and trailer for six VTubers debuting under UltraLMTM, a brand produced by ZETA DIVISION creator k4sen. The debut streams run October 5 and 6 at 19:00, three members each night, with an official stream featuring k4sen from 20:30.
GANYMEDE Inc. announced on September 28, 2026 that six creators will debut under UltraLMTM, the VTuber brand produced by streamer k4sen, who belongs to the CREATOR division of the esports team ZETA DIVISION. The six are Riina Koga Fluorite, Amari Mahiru, Yuime Yuina, Hanasake Sei, Washimi Daisho, and Yayoi Chiu. First streams run over two days at 19:00 each day: three members on Monday, October 5 and three on Tuesday, October 6, each on their own YouTube channel. From 20:30 each day, the three who streamed plus k4sen appear on a program on the UltraLMTM official channel. Profiles, visuals, a trailer, and X accounts for all six launched with the announcement. The brand's stated concept is "Beyond imagination, ideals squared."