The Ensemble Stars!! main story is ongoing with the Megastream arc and a new unit MELLOW DEAR US, while a Fit Boxing 3 collaboration DLC pack launched July 16. Former music producer Kiyoshi Kuwabara resigned in June after misconduct allegations.
The Ensemble Stars!! franchise continues to expand its narrative and cross-media presence. The Megastream arc, the first part of the Megasphere main story, introduces the new unit MELLOW DEAR US and progresses the overarching plot that began with the game's 2015 debut. A 4Gamer story recap published in July 2026 provides a chapter-by-chapter summary of the arc, which centers on the floating Megasphere and the theme of transformation.
In a separate development, a paid collaboration with Nintendo Switch fitness title Fitness Boxing 3: Your Personal Trainer launched on July 16, 2026. The DLC pack adds seven instrumental arrangements of Ensemble Stars!! songs and six T-shirt costumes for instructors, priced at 1,320 yen. A free trial pack with two songs is also available. The collaboration includes an X campaign featuring the shuffle unit Butokai as SNS-exclusive instructors, with daily lottery giveaways of collaboration packages.
The franchise also underwent a leadership change. Kiyoshi Kuwabara, music producer for Ensemble Stars!! and head of the production group Arte Refact, resigned in June 2026 after acknowledging allegations of misconduct with women. His company Memento mori Inc. confirmed the facts and stated that his future as representative was under discussion. His band Sir Vanity also issued an apology and announced a review of upcoming releases and events.
Synthesized by Yomimono from the cited Yomimono stories below, each itself
sourced, then editorially reviewed. Every
fact links the story it came from.
Jul 17
The latest 4Gamer story recap for Ensemble Stars!! covers the Megastream arc, the first part of the Megasphere main story, and introduces the new unit MELLOW DEAR US. The article provides a chapter-by-chapter summary of the arc, which features the floating Megasphere and the concept of transformation, and highlights character development for Subaru Akehoshi. It also includes a timeline of the game's main story from its 2016 debut to the ongoing World Tour arc.
Jul 13
Imagineer revealed details of a user-participation X campaign for the Fit Boxing 3 Ensemble Stars!! DLC pack. Starting July 16, members of the shuffle unit Butokai will appear as SNS-exclusive instructors on the official Fit Boxing X account. The campaign presents specific in-game menus as missions. Daily lottery gives 10 winners a collaboration package. The DLC includes instrumental BGM of seven songs and six T-shirt designs for 1,320 yen. A free trial pack for two songs is also available until August 17.
Jun 28
A paid add-on for Fitness Boxing 3: Your Personal Trainer will add seven instrumental arrangements of Ensemble Stars!! songs, plus six T-shirt costumes for instructors. The pack costs 1,320 yen and launches July 16. A free trial pack with two songs will also be available from the same day.
Jun 6
Kiyoshi Kuwabara, music producer for Ensemble Stars!! and head of Arte Refact, resigned after acknowledging allegations of misconduct with women as largely true. His company Memento mori Inc. confirmed the facts and said his future as representative is under discussion. His band Sir Vanity also apologized and is reviewing upcoming releases and events.