Listen to this and you'll understand Seiko-chan's history!
In addition to singles, it also includes album tracks and rare songs that are popular with fans.
It reached number one on the Oricon charts. The songs are in the order of their release, so you can learn about Seiko's history. It includes her singles from her debut song "Hadashi no Kisetsu" to "With You." It is also limited edition, so it includes the rare and unreleased song "WITH YOU."
