Born into one of Japan's most affluent families, Aoi has come to stay at a cottage with her favorite friends: popular model Yui, up-and-coming novelist Riko, and Olympic hopeful sprinter Himari. The four beautiful girls, each radiating a jewel-like brilliance, are about to reveal their "most cherished secrets" that they haven't told anyone else... You won't be able to take your eyes off the shocking "secrets" that these four girls reveal!! (Source: Shueisha, translated)

Born into one of Japan's most prominent celebrity families, Aoi had come to a summer resort with three of her favorite female friends. Yui, a model; Riko, a novelist; Himari, a sprinter… these beautiful girls shone like jewels in every way, from their looks and status to their talents. As night fell over the resort and complete darkness enveloped them, the four girls decided to take turns revealing "secrets they hadn't told anyone else"!? (Source: Shueisha, translated)