Yameii Online has been played on NTS in shows including Supporter Radio: Dreams, featured first on 5 September 2019. Songs played include Baby My Phone, Dreams and Phantasy Star Online.

Yameii, also known as Yameii Online, is a Vocaloid rapper and the "hero" character in OseanWorld. She was given powers by Space God, who took them away until she regained them in the Endless Realm. Yameii Online is maintained by visual artist Osean and musical artist Deko, who is a frequent vocal collaborator and produces all of Yameii's music.