Folder 5 (Japan) was a spinoff group from another J-pop group, Folder, also signed to Avex trax. Along with the five girls, Folder also had two male members, Daichi and Joe. When Daichi and Joe left the group due to puberty, Folder became Folder 5. In 2000 they released their first single, "Supergirl". Their third single, "Believe", was used as the second opening theme for the popular anime One Piece. The song "Ready!" from their forth single "Stay..." was used as the theme song in the short "Jango's Dance Carnival" that was shown with One Piece's second movie, "Clockwork Island Adventure". They also made frequent appearances on the show Yoru mo Hippare. Their song "Magical Eyes" was also used as the opening theme for the Xbox game Nezumix, also known in North America and Europe as Sneakers, though it was removed in all English releases. After the release of their 8th single, "MY MIRACLE," in May 2002, they have released no more singles. Furthermore, their final album to date was a best album. Thus, it appears as though they have disbanded, although no official announcement was ever made. Additionally, some members of Folder 5 moved on to solo careers.