Offo tokyo is a Japanese music unit. Formed in 2021 as a music-focused unit by members of the creative collective “Offo,” which was established in 2019, the group consists of four members: Hiira, Shota Kaya, Seiya Ozaki, and Nemo. Officially, since Nemo is in charge of the cat, the group is considered a trio plus one cat. They made their debut on November 22, 2023, with the simultaneous release of the single “Rainy Day” and the EP *My Music, Your Life.* After releasing songs digitally for five consecutive months—starting with “Dreamland” in December and continuing through “Weekend” in April 2024—they released the EP *COCO TOKYO* in October. On February 12, 2025, they made their major-label debut with their first single, “Your Song,” released by Teichiku Entertainment. Following this, they released “Sorrow and Ice Blue” in April and “The World Is Waiting for Tonight” in June, and starting in November, they once again released songs for five consecutive months as part of the “Ikasama Project.” After releasing “TYT” in March 2026—which was featured in a web commercial—they will release their first album, *Deja-vu*, which compiles new songs alongside tracks released throughout their career, including their indie days. In July, they released the single “The Shape of Happiness,” which was used as the ending theme for the TBS television drama *Masamune-kun Wants to Be Happy*.