Using Crystal Power, Sailor Mercury extends her hand and the symbol of Mercury appears, followed by a swirl of water. The water transforms into a harp. Playing the water harp triggers a water attack that extends in waves of water before combing to create giant funnel.
Sailor Moon SuperS
Sailor Mercury first used Aqua Rhapsody in Sailor Moon SuperS, episode 24, "Heartfelt Melody". It was used to break a barrier caused by a Remless named Kerokero. One of the more notable uses of the attack was in the episode "One In The Hand", where she used the attack to defeat Zirconia.