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Hoshimachi Suisei
Hoshimachi Suisei is a hololive-affiliated virtual idol running her own agency, Studio STELLAR, which she established in March 2026. She is releasing music under this new structure, including the single 'GUM & DROP' and Midnight Grand Orchestra's first EP, and has multiple live and event appearances scheduled through late 2026 and into 2027.
Synthesized from 15
Yomimono stories · updated
3d ago
Hoshimachi Suisei launched her personal agency Studio STELLAR in March 2026, a move that gave her control over her solo music and brand while keeping her within hololive production. The agency operates in collaboration with COVER Corporation and NERD Inc., the company that also manages TAKU INOUE and Midnight Grand Orchestra. She announced the launch during an acoustic stream marking her 8th anniversary and birthday, and revealed a 2026 arena tour across Yokohama, Kobe, Nagoya, and Fukuoka.
Her first release under the new system, 'GUM & DROP,' arrived on August 31, co-written in Los Angeles with US-based creators. She wrote the lyrics alongside Sabrina Claudio and Paris Alexa, with TAKU INOUE co-producing. The track pairs J-POP with US dance music. That same month, Midnight Grand Orchestra released its first EP, 'Travelogue I,' originally planned as a CD bundle for an anime project that was canceled due to production delays; the digital release went ahead.
Suisei's calendar is full of live appearances. She will play WONDERLIVET 2026 in South Korea on November 20, and Midnight Grand Orchestra performs there the next day. She and tuki. hold a joint live at K-Arena Yokohama on December 20. In February 2027, Midnight Grand Orchestra plays its second solo concert, 'Project:Allegro.' Product collaborations continued through 2026, including a Gundam figure in her image colors, a miComet JOYSOUND karaoke tie-in, and a ceremonial first pitch with Hatsune Miku at a Lotte Marines game in July.
Key facts
- Personal agency
- Established Studio STELLAR in March 2026 to manage her solo artist activities, in collaboration with COVER Corporation and NERD Inc. ↗
- New song
- Digitally released 'GUM & DROP' on August 31, 2026, with lyrics co-written with Sabrina Claudio and Paris Alexa, and co-production by TAKU INOUE. ↗
- Midnight Grand Orchestra EP
- Released first EP 'Travelogue I' on August 19, 2026; CD version was canceled due to production delays at an external company. ↗
- Joint live
- Will hold joint live 'Hoshifuru Bansankai' with tuki. on December 20, 2026 at K-Arena Yokohama. ↗
- Festival performances
- Performs at WONDERLIVET 2026 on November 20, and Midnight Grand Orchestra performs on November 21. ↗
- Arena tour
- Announced 2026 arena tour 'Once upon a Stellar' across Yokohama, Kobe, Nagoya, and Fukuoka. ↗
- Midnight Grand Orchestra concert
- Midnight Grand Orchestra will hold its second solo live, 'Project:Allegro,' in February 2027. ↗
- Ceremonial first pitch
- Threw ceremonial first pitch at Chiba Lotte Marines vs. Fukuoka SoftBank Hawks game on July 20, 2026, with Hatsune Miku appearing on the stadium screen. ↗
- Gundam figure
- A METAL ROBOT Soul Sazabi [Hoshimachi Suisei Ver.] figure, priced at 28,600 yen, ships in January 2027. ↗
- Karaoke collaboration
- miComet, the unit with Sakura Miko, had a JOYSOUND collaboration running June 13 to July 30, 2026, including merchandise and a voice-recorded alarm clock lottery. ↗
Timeline
- Aug 30, 2026 Hoshimachi Suisei Releases New Song GUM & DROP, Co-Written in Los Angeles
- Aug 30, 2026 tuki. and Hoshimachi Suisei Announce Joint Live at K-Arena Yokohama
- Aug 29, 2026 Hoshimachi Suisei and Midnight Grand Orchestra to Play WONDERLIVET 2026
- Aug 29, 2026 HoloLive Figures Go on Sale at Tokyo Otaku Mode
- Aug 27, 2026 Gundam x Hololive Collaboration Figures and Kaitai Shouki Gundam Mk-II Open Reservations
- Aug 19, 2026 Midnight Grand Orchestra Releases First EP Travelogue I Digitally
- Aug 6, 2026 Holodori Next Event Features miComet, Details Set for August 6
- Jul 14, 2026 Hololive VTubers Tackle Steins;Gate Escape Game Ahead of RE:BOOT Release
- Jul 11, 2026 Hatsune Miku and Hoshimachi Suisei to Throw Ceremonial First Pitch
- Jul 10, 2026 Hoshimachi Suisei to Throw Ceremonial First Pitch With Hatsune Miku at ZOZO Marine Stadium
- Jul 9, 2026 Hoshimachi Suisei to Throw First Pitch, Hatsune Miku to Appear at Lotte Marines Game
- Jun 29, 2026 Hoshimachi Suisei and Hatsune Miku Likely in New Lotte Ice Cream Commercials
- Jun 5, 2026 Hololive's MiComet Teams With JOYSOUND for Collab Goods and Karaoke Rooms
- May 31, 2026 Hoshimachi Suisei Launches Own Agency Studio STELLAR
- May 28, 2026 Midnight Grand Orchestra Announces First EP Travelogue I
Synthesized by Yomimono from the cited Yomimono stories below, each itself
sourced, then editorially reviewed. Every
fact links the story it came from.
Facts
- Noted
- Hoshimachi Suisei established her personal agency Studio STELLAR in March 2026. · 2026-08-30
- Noted
- part of miComet · 2026-08-06
- Noted
- played a browser-based real escape game based on Steins;Gate · 2026-07-14
- Noted
- Hoshimachi Suisei will throw the ceremonial first pitch at the July 20 baseball game between the Chiba Lotte Marines and Fukuoka SoftBank Hawks at ZOZO Marine Stadium. · 2026-07-10
- Noted
- Suisei will throw the ceremonial first pitch before the game against the Fukuoka SoftBank Hawks · 2026-07-09
- Noted
- Hoshimachi Suisei, affiliated with hololive and Studio STELLAR, will perform at the South Korean music festival WONDERLIVET 2026 across two acts. · 2026-08-29
- Noted
- She plays on November 20 · 2026-08-29
- Noted
- Based on the silhouettes and credits for Studio STELLAR, Cover Corporation, and Crypton Future Media, the artists are believed to be VTuber Suisei Hoshimachi and VOCALOID Hatsune Miku. · 2026-06-29
- Announced
- launch of her personal agency, Studio STELLAR · 2026-05-31
Connections
Structured graph also available as JSON at /public/entities/hoshimachi-suisei.
CC BY 4.0.
Claim activity
When a claim about Hoshimachi Suisei was confirmed, debunked, or disputed against
open-web sources. The record stays even after a claim drops off the facts list.
- Confirmed launch of her personal agency, Studio STELLAR May 31 · source
- Confirmed hoshimachi suisei produces travelogue i May 28 · source
- Disputed hoshimachi suisei produces travelogue i May 28 · source
All coverage
Aug 30
Hoshimachi Suisei, the VTuber affiliated with hololive and Studio STELLAR, will digitally release her new song "GUM & DROP" on Monday, August 31. The music video arrives the same day at 8:00 p.m. The announcement came during her August 30 stream, where she debuted a new default costume and room while performing the song for the first time. Suisei wrote the lyrics herself, alongside R&B singer-songwriters Sabrina Claudio and Paris Alexa. Mikhail Beltran, known for work with Chloe x Halle and Tinashe, co-composed with Xansei, Claudio, and Alexa. TAKU INOUE, who develops the Midnight Grand Orchestra project with Suisei, joined as co-producer. The track fuses J-POP catchiness with US dance music, born from a co-writing session in Los Angeles. The release is the first under Suisei's new system, and she described the song and choreography as cute, inviting fans to copy the dance. Related announcements from the stream include a joint live with tuki. on December 20, 2026 at K Arena Yokohama, and a second Hoshizumi Pajama Party event in 2027.
Aug 30
tuki. and Hoshimachi Suisei will hold a joint live titled 'Hoshifuru Bansankai' on December 20 at K-Arena Yokohama. The key visual was drawn by wataboku. Ticket advance reception begins August 30. The two became close after posting karaoke videos in 2025, and tuki. later provided the song 'Suisei' to Hoshimachi Suisei in December 2025. Hoshimachi Suisei established her personal agency Studio STELLAR in March 2026.
Aug 29
Hoshimachi Suisei, affiliated with hololive and Studio STELLAR, will perform at the South Korean music festival WONDERLIVET 2026 across two acts. She plays on November 20, and her project Midnight Grand Orchestra takes the stage on November 21. The festival runs November 20 to 22 at KINTEX HALL 7·8·9·10.
Aug 29
Tokyo Otaku Mode is selling three HoloLive figures: a swimsuit version of Shirogane Noel based on her first anniversary illustration, plus POP UP PARADE SP figures of Hoshimachi Suisei and Tokoyami Towa. Prices are 19,800 yen for Noel and 6,800 yen each for the other two.
Aug 27
Bandai Spirits opened reservations on August 27, 2026 for several new items in its Tamashii Nations figure lines, including two METAL ROBOT Soul figures from the Gundam x hololive production collaboration. The METAL ROBOT Soul <SIDE MS> Nu Gundam [Sakura Miko Ver.] is priced at 24,200 yen, and the Sazabi [Hoshimachi Suisei Ver.] at 28,600 yen, both shipping in January 2027. Reservations for the Nu Gundam began at 16:00 and for the Sazabi at 17:00 on August 27. The figures feature special coloring based on the VTubers' image colors, dedicated bases, and collaboration markings. The company also opened reservations for the METAL STRUCTURE Kaitai Shouki RX-178 Gundam Mk-II (AEUG Specification), a 310mm figure priced at 137,500 yen, also shipping in January 2027. The Kaitai Shouki figure includes LED gimmicks and three armor deployment forms. These items were displayed at the Bandai / BANDAI SPIRITS booth at TOKYO TOY SHOW 2026, alongside other collaboration figures including RG RX-78-2 Gundam Ver.2.0 [HOLOLIVE PRODUCTION Ver.] and RG Crossbone Gundam X1 [Houshou Marine Ver.].
Aug 19
Midnight Grand Orchestra, the unit formed by Hoshimachi Suisei and TAKU INOUE, released its first EP Travelogue I on August 19. The four-track release includes Hyper Vip, Nonsense, Flash, and 404, and adds strings such as violin, viola, and cello to the unit's club sound. The EP was originally planned as a limited first edition CD bundled with soundtrack music for an original anime project, but production problems at the external production company made the release timing uncertain, so the CD sales were canceled. Streaming and download distribution proceed as planned.
Aug 6
Cover announced that the next in-game event for the rhythm and RPG "hololive Dreams" ("Holodori") will feature the unit miComet, consisting of Sakura Miko and Hoshimachi Suisei. The event, titled "Syncing Summer Sparkle," is scheduled to begin on August 7, 2026, at 12:00. Alongside the event, three songs by the duo will be added to the game, and players can obtain miComet event memories by participating. The announcement follows a teaser on the official X account that hinted at the two talents with an ocean background and icons on their outfits. The first in-game event, "Hello! Brand New Summer!," ended on August 5, and details for the next event were scheduled to be revealed on August 6 at 18:00. "Holodori" is the first official smartphone game for the VTuber group hololive, developed jointly by Cover and QualiArts, and released on July 23. It surpassed 1 million downloads the day after release. The game is available on iOS, Android, and PC via Steam with a free-to-play model.
Jul 14
Shirakami Fubuki and Hoshimachi Suisei played a browser-based real escape game based on Steins;Gate, encountering a freeze that forced a restart. The article also recalls Oozora Subaru and Usada Pekora's first-time reactions to the series. The piece promotes the upcoming Steins;Gate RE:BOOT, which adds a new Gamma world line route.
Jul 11
Hatsune Miku and Hoshimachi Suisei will appear at the ceremonial first pitch of the Chiba Lotte Marines vs. Fukuoka SoftBank Hawks game on July 20, 2026 at ZOZO Marine Stadium. The appearance is tied to a new CM for Lotte's Coolish and Sou brands, released July 3, featuring the song 'Blue's Nest' by Tatsuya Kitani with character design by Kope Nishiki. A collaboration hotel room and train jack are also planned.
Jul 10
Hoshimachi Suisei will throw the ceremonial first pitch at the July 20 baseball game between the Chiba Lotte Marines and Fukuoka SoftBank Hawks at ZOZO Marine Stadium. Hatsune Miku will appear on the stadium's video screens to cheer during the ceremony. The appearance is tied to a new commercial for Lotte's Coolish and Sō products, in which both sing the song "Ao no Sumika" by Tatsuya Kitani. The commercial was released on July 3. Additional promotions include a collaboration room at Lotte City Hotel Kinshicho and a train jack on the Tokyo Metro Hibiya Line. Suisei commented, "I'll aim for a blazing fastball!!" The game starts at 17:00, with doors opening at 15:00 and the first pitch scheduled around 16:40. The event is part of Lotte's sponsored game day titled "A cold, blue summer has arrived. Coolish & Sō DAY." Crypton Future Media, the company behind Hatsune Miku, announced the appearance.
Jul 9
The Chiba Lotte Marines will host a sponsored game day on July 20, 2026, featuring Hoshimachi Suisei and Hatsune Miku. Suisei will throw the ceremonial first pitch before the game against the Fukuoka SoftBank Hawks, while Miku will appear on the stadium vision. Suisei said she aims for a fastball and will cheer the crowd.
Jun 29
Lotte's Coolish and Sou ice cream brands posted silhouette images of two singing artist groups for upcoming commercials. Based on the silhouettes and credits for Studio STELLAR, Cover Corporation, and Crypton Future Media, the artists are believed to be VTuber Suisei Hoshimachi and VOCALOID Hatsune Miku. The commercials will feature songs related to 'blue'.
Jun 5
On June 5, 2026, Chugai Mining announced a collaboration between the Hololive unit miComet-comprising Sakura Miko and Hoshimachi Suisei-and the karaoke chain JOYSOUND. The event runs from June 13 to July 30 at 60 JOYSOUND and affiliated stores nationwide, with goods available at 20 of those locations and online. The collaboration includes new original merchandise featuring the pair in two visual themes: a stadium jacket coordination and an after-school track suit coordination. Product highlights include life-size acrylic stands (2,200 yen each), trading can badges, trading acrylic stands, acrylic art boards, a magnet can caramel with a mini can badge, flake sticker sets, and a mini tambourine. For each collaboration menu item ordered in-store, customers receive one of eight random coaster designs. Purchases of 2,000 yen or more of collaboration goods in-store earn a random postcard bonus and one entry into a lottery for a newly recorded voice alarm clock, with 100 winners selected. The alarm clock campaign is in-store only; online purchases do not include entry postcards.
May 31
Virtual idol Hoshimachi Suisei announced the launch of her personal agency, Studio STELLAR, during an acoustic live stream on March 22, marking her 8th anniversary and birthday. The new agency will manage her solo artist activities, including music production, streaming, merchandise sales, and fan club operations, in collaboration with hololive production operator COVER Corporation and the newly established NERD Inc. NERD Inc., which also manages TAKU INOUE and the group Midnight Grand Orchestra, describes itself as an independent artist agency for extraordinary talents. Suisei will continue group and collaborative activities as a hololive production talent. She also revealed a new artist photo and a logo featuring a crown-like symbol. Alongside the agency launch, Suisei announced a 2026 arena tour titled "Once upon a Stellar" across four cities: Yokohama, Kobe, Nagoya, and Fukuoka. Midnight Grand Orchestra will resume activities and hold a second solo live concert, "Project:Allegro," in February 2027.
May 28
The music project Midnight Grand Orchestra, led by VTuber Suisei Hoshimachi and sound producer TAKU INOUE, will release its first EP Travelogue I on August 19. A new artist photo and a special website were unveiled May 27. Track details remain unrevealed as production continues. The EP marks a full-scale restart ahead of the February 2027 live concert Project: Allegro.