Blackbox Inc., a company that produces and manages 2.5D IP, has entered into a business partnership with Rebrast, a writers’ agency that manages songwriters, arrangers, and engineers.
Blackbox Inc. Press Release: October 24, 2025 Blackbox, Inc., which produces and manages 2.5D IP, has entered into a business partnership with Rebrast, a writers’ agency that manages songwriters, arrangers, and engineers. – Strengthening co-creation with music creators to expand the musical expression of 2.5D idols –
https://prcdn.freetls.fastly.net/release_image/109030/87/109030-87-a044c7d4a5d5fc640bc0b7f1d9447802-1200×675.png
Blackbox Inc. (Headquarters: Shinjuku-ku, Tokyo; CEO: Ryuyu Sakamoto; hereinafter “Blackbox”) is pleased to announce that it has entered into a business partnership with Rebrast (Headquarters: Chiyoda-ku, Tokyo; CEO: Hirotaka Hayakawa; hereinafter “Rebrast”), a writing agency that manages composers, arrangers, lyricists, and engineers. [Background and purpose of the partnership] Blackbox creates new entertainment experiences that transcend the boundaries of VTubers and real idols, focusing on the production and management of 2.5D IP. We are building a unique IP worldview that integrates music, live performances, streaming, and storytelling, and we view strengthening the core music as a top management priority. Improving the quality and speed of music production is essential to accelerating market growth and developing a capital-efficient IP business. Meanwhile, Rebrast is a music agency that manages a wide range of creators involved in music production, including composers, lyricists, arrangers, and engineers, and supports music production in a variety of genres, including artists, voice actors, anime, and games. Blackbox is a music production company with a long history of success, having produced numerous hit songs for national idol groups such as AKB48 and Nogizaka46. In recent years, they have proven their outstanding production capabilities by leading music consumption trends on new platforms such as streaming and social media, including writing and composing CUTIE STREET’s “Kawaii Dake Jade Dame Desu Ka?”, an explosive hit primarily among Gen Z. This partnership aims to maximize the value of IP and establish an overwhelming advantage in the market by combining Blackbox’s “2.5D IP” production capabilities with Rebrast’s top-tier music creators and production know-how. Through this strategic partnership, Rebrast’s creators will be deeply involved in the music production of Blackbox’s IP, such as “Ravipare!!” and “Quinte.” By creating sound production that is deeply rooted in the concept of each work, we will further deepen the IP’s worldview and strengthen fandom engagement. We believe that this partnership, combining the strengths of both companies, will create a new model for success in the entertainment market and contribute to improving corporate value in the medium to long term. Comment from the CEO of Blackbox CEO, Blackbox Inc. Ryuyu Sakamoto We are extremely encouraged that this partnership will enable us to strengthen our core IP area, music. Rebrast has a high level of expertise not only in music production, but also in creator development and business management. Going forward, as a long-term partnership, we would like to take on the challenge of creating new value by leveraging the assets of both parties. Comment from the Representative of Rebrast Representative Director, Rebrast Inc. Hirotaka Hayakawa We believe this partnership is a great opportunity for our creators to take on the new field of 2.5D. We hope to create new value together by combining Blackbox’s outstanding IP production capabilities with Rebrast’s music production capabilities to expand the possibilities of music.
https://prcdn.freetls.fastly.net/release_image/109030/87/109030-87-f9550b7e7a93fc9f68fc35b13d5c68b7-1500×375.png About Blackbox, Inc. ・Company Name: Blackbox, Inc. ・Location: Shinjuku Park Tower N Building, 30th Floor, 3-7-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo -Representative: Representative Director Ryusuke Sakamoto -Business Activities: 2.5D IP production and management, VTuber production, media mix, and live music events -Website:
https://blackbox-inc.com/
https://prcdn.freetls.fastly.net/release_image/109030/87/109030-87-203c0e3784d6eb1b4785e572aa496c6f-1400×243.jpg About Rebrast Co., Ltd. ・Company Name: Rebrast Co., Ltd. ・Location: Ornament Building 2F, 2-6-6 Kudanminami, Chiyoda-ku, Tokyo
-Representative: Representative Director Hirotaka Hayakawa -Business Activities: Management and training of songwriters, composers, and engineers; music production; studio management; copyright management; event planning, production, and management -Website:
https://rebrast.com/ Copyright ©
Corporation All Rights Reserved.
