Grape is a Negamonster who works for Zoycite. She is one of the Plant Sisters, and can shoot small red orbs that act as fireballs or bombs. She appeared in Sailor Moon Episode 20, A Friend in Wolf's Clothing.
Zoycite sent Grape, Housenka, and Suzuran to kill Neflite. They kidnapped Molly so Neflite would come to them. However, killing him wasn't as easy as they expected; he beat them up before telling them to tell Zoycite that they would not be getting his star crystal.
However, the plant sisters returned. After Housenka stabbed Neflite, Grape caused further injury by shooting fireballs at him. The Sailor Scouts arrived before they could finish them off. Sailor Mercury used Mercury Bubbles Blast to stop Grape's fireballs coming at them, turning them to rock. Sailor Moon and Sailor Mars combined Moon Tiara Magic and Mars Fire Ignite to destroy Grape, along with Housenka and Suzuran.