Chihiro Onitsuka brings an all-time greatest hits album to commemorate the 20th anniversary of her career. Includes "Gekko," "Memai," "Ryuseigun," "infection," "Watashi to Waltz wo," "End of the world" (becomes available in CD format for the first time), a new song "Kakikake no Tegami" and more. This edition features the title songs of all the 29 single releases from her (29 tracks) in two discs. Collector's edition comes with two bonus CDs each featuring tracks selected by herself and instrumental collection. Features SHM-CD format. LP-sized deluxe box packaging with a 60-page photo booklet.