Mikio Sakai (?????, Sakai Mikio?, born August 24, 1970 in Hokkaid?) is a Japanese singer-songwriter. His real name is Mikir? Sakai (????, Sakai Mikir??). He made his debut with the single Ima dake wa Kimi wo Hanasanai (??????????, Ima dake wa Kimi wo Hanasanai?). He has composed, written and performed numerous songs for several anime, including Fantastic Children, Tsubasa Chronicle, the Gor? Taniguchi-directed Sunrise productions, Planetes, s-CRY-ed, Code Geass, as well as various other media.