Shakin' it~

Three male anime characters in dark blue and orange volleyball uniforms stand in a gym, with the character on the right displaying a distressed expression; the scene cuts to a bright white flash, then to the same characters lying on their backs on a blue court, followed by a group of characters in yellow and white uniforms raising their arms in a gym, then to two characters in blue and black practice jerseys, and finally to a group of characters in yellow and white uniforms performing a synchronized movement while being watched from the side.