Sixth original soundtrack release from the app game "PRINCESS CONNECT! Re:Dive." Contains 85 BGM songs in total, including the opening song "Precious Journey (OP Ver.)" of Part 3, the ending theme of Part 2 "Yes! Precious Harmony! (Music Box Ver.)," and the ending song of Part 3 "Akaneiro no Yorimichi (ED Ver.)." Includes a 32-page full-color booklet with commentary by the song creators.