After making his musical debut with previous projects from his YouTube group of The Group, LOST marks his first solo debut album from member Yumi and was released on July 21, 2023. After the self-leak releases of Blacktop and Mind, the official announcement of the album was shared on Yumi’s Twitter in mid-June, alongside the cover and tracklist artwork. He would later announce the release date a week before release, alongside a merchandise release. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.