Rinko Shirokane is a shy and introverted girl from the multimedia franchise BanG Dream! She serves as the keyboardist of the band Roselia. Despite her quiet demeanor and social anxiety, Rinko is an incredibly talented musician and composer, often contributing to the band's success with her skill and dedication. Throughout the series, she gradually overcomes her insecurities, forming strong bonds with her bandmates and growing in confidence both as a performer and as a friend.