The Princess came into possession of a plasma shard which Rick wanted to have. In order to get the shard, Rick would need to prove himself to the Princess by helping them destroying a gigantic space creature along with her own army. After six days, Rick and Morty fly into the space creature and blow it up from the inside. Upon returning to the princess, she arranged a large medal ceremony at which she rewarded them with the plasma shard.
The Princess is a yellow alien with large circular dark purple eyes and long eyelashes. Her mouth is odd sack-like. Her arms and legs are long and thin, while her body is small and only resembles a torso. She only has two fingers on each hand. She dresses in pale blue with a blue see-through cape.