YUKA, formally and formerly Yuka Sato (ä½è—¤æœ‰é¦™ SatÅ YÅ«ka), is a Japanese singer, born on December 10, 1970. She's best known for singing "Mirai no Kioku", the opening theme of the anime Kiddy Grade. In June 2000, she married drummer , and in 2003, gave birth to a son.