GANYMEDE runs the k4sen-produced VTuber brand UltraLMTM, which is in the middle of its Patch 1.1 schedule running from November 14 to December 31, 2026. The company also announced in October that streamer Haseshin joined the CREATOR division of ZETA DIVISION.
GANYMEDE's recent activity splits between the VTuber brand UltraLMTM and the CREATOR division of ZETA DIVISION. UltraLMTM, produced by streamer k4sen, named its first generation on September 28, 2026: six creators, Riina Koga Fluorite, Amari Mahiru, Yuime Yuina, Hanasake Sei, Washimi Daisho, and Yayoi Chiu. Their first streams ran over two days at 19:00, three on October 5 and three on October 6, each on a separate YouTube channel, with a follow-up program on the UltraLMTM official channel at 20:30 featuring that day's three members plus k4sen. Profiles, visuals, a trailer, and X accounts launched with the announcement under the concept "Beyond imagination, ideals squared."
The brand then moved to a Patch-style schedule. On November 12 the company announced Patch 1.1, running from Saturday, November 14 to Thursday, December 31, 2026, and revealed the brand's first full-group key visual by Makai no Jumin showing all 8 CREW members. The roadmap includes the first episode of official program Ultra Limi Totsu and LMTM The k4sen on December 27, and ends with a Patch 1.2 announcement program on December 30. The eight-member count in the key visual is larger than the six named in September, and the stories do not account for the two additional members.
Separately, GANYMEDE announced on October 1 that streamer Haseshin joined ZETA DIVISION's CREATOR division, with a joining announcement movie on YouTube. Haseshin has streamed games since 2011 and their YouTube channel has 950,000 subscribers as of the announcement. The signing places a long-running streamer in a division the story describes as separate from the team's competitive rosters.
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UltraLMTM, the VTuber brand run by GANYMEDE Inc. and produced by k4sen, will run Patch 1.1 from Saturday, November 14 to Thursday, December 31, 2026. The announcement program on November 12 revealed the brand's first full-group key visual, drawn by Makai no Jumin, showing all 8 CREW members, plus a year-end roadmap that includes the first episode of official program Ultra Limi Totsu and LMTM The k4sen on December 27.
GANYMEDE announced on October 1 that streamer Haseshin has joined the CREATOR division of pro esports team ZETA DIVISION. The company also released a joining announcement movie on YouTube. Haseshin has streamed games since 2011, and their YouTube channel has 950,000 subscribers as of the announcement. Known for rapid-fire Kansai-dialect talk and a bright personality, Haseshin plays a range of titles, mainly FPS games, and appears at events beyond streaming. In a comment, Haseshin said they will keep working energetically in the new environment to deliver energy to as many people as possible, and asked for support at ZETA DIVISION. Haseshin's published profile lists a birth date of October 31, 1995, favorite foods of hamburgers, onigiri, and lasagna, and a motto about not forgetting who they are, while the profile from a second announcement lists hamburger steak, onigiri, and lasagna.
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."