Aster is the debut studio album by Japanese Virtual YouTuber Tokoyami Towa. It was released on September 27, 2022, by Cover Corporation. It features 12 tracks with a combination of previously released singles and brand-new original songs. The album features the production work of many renowned vocaloid producers, such as Camellia and niki, the latter of whom previously produced Towa's original songs Palette and FACT. The album was made available for physical CD pre-order via the Hololive Production official shop.