Nijisanji VTuber Toya Kenmochi (剣持刀也) has revealed the final guest for his upcoming solo real-life concert, titled “Kokuu Kyoen” (虚空狂宴). Suisei Hoshimachi (星街すいせい), who belongs to both hololive and Studio STELLAR, will join the show, according to an announcement posted by Nijisanji’s official account on August 25.
Suisei’s addition rounds out a guest lineup that already included fellow Nijisanji talent Kuzuha (葛葉) and Peanut-kun (ピーナッツくん). In his own post announcing the news, Kenmochi described the event as a festival bringing together three artists who represent the virtual talent scene, adding that he was excited to see what kind of day it would turn out to be.
“Kokuu Kyoen” is scheduled for October 11, 2026, a Sunday, with doors opening at 16:30 and the show starting at 18:00. The concert will be held at K Arena Yokohama, one of Japan’s larger indoor arena venues. Further details are available on the event’s official site.
Tickets are being distributed across several stages. A serial-code lottery tied to Kenmochi’s first mini album, “Augment,” ran from July 15 to August 12. A general fan club lottery followed, open from August 14 to August 23. An eplus-exclusive lottery opens next, running from August 26 through September 6, ahead of a first-come general sale starting September 20.
Who is Toya Kenmochi?
Toya Kenmochi is a male Virtual YouTuber affiliated with Nijisanji, one of Japan’s largest VTuber agencies, run by Anycolor. Known for his gaming streams, singing, and collaborations with fellow Nijisanji talents, Kenmochi has built a dedicated fanbase since his debut and has released original music, including his mini album “Augment.” “Kokuu Kyoen” marks his first solo real-life arena concert.
Suisei Hoshimachi, meanwhile, is one of hololive’s most prominent talents, recognized for her singing career under the artist name Suisei, and she is also affiliated with Studio STELLAR. Her appearance is notable because it brings a hololive-affiliated artist onto a Nijisanji talent’s solo stage, a pairing that doesn’t happen often given the two agencies are usually seen as rivals.
Author’s Comment
Excuse me while I go lie down for a second, because a hololive artist just walked onto a Nijisanji solo stage and nobody’s stock crashed. For years these two agencies have basically been rival fan armies who occasionally nod at each other from across the room, so watching Suisei casually join Kenmochi’s line-up like it’s no big deal is genuinely a bit of a moment. I’ll say this for the VTuber industry: it loves a good "event exclusive" crossover to sell out an arena, and honestly, good for them, it works every time. Fans on the Japanese side of the internet are already losing their minds calling it a dream team, and frankly, they’re not wrong to. Just don’t ask me how anyone’s wallet is supposed to survive that ticket lottery gauntlet.
