日本エアシステム
For the next two years following her scouting, she was a Toei "karaoke queen" and a promotional model appearing in television commercials for Japan Air System. The following year Sakai was a Nissin race queen. In 1990, Daiko Nagato, a music producer for Being Corporation, noted her potential as a singer-songwriter. Through this connection, she created a Being subsidiary called Sensui (same Kanji characters as Izumi) and started her career taking the name Izumi Sakai. In addition to taking a new name, Sakai revised her year of birth from 1967 to 1969.