Pie comes to Earth with Tart to aid Kish in preparing the planet of the arrival of Deep Blue. Serious natured, he is calmly analytical during his initial attacks on the Mew Mews, scientifically escalating the "mortality rate" of each chimera anima he sends and, when they are defeated, noting that "stronger tactics will be needed. Pie, like the other aliens, has the ability to fly and to transport himself. He attacks using chimera anima creations and with physical attacks. In the anime, Pie also fights using a fan weapon that can produce several wind and thunder-based attacks.

Unlike Kish and Tart, Pie does not outwardly express his emotions often, rarely smiling even when taunting the Mew Mews and after Deep Blue's awakening. Towards the end of the anime adaptation, Pie seems to gain an understanding of the Mew Mews, in part due to Lettuce trying to convince him that they don't need to fight.[episode needed] He also sacrifices himself to aid the Mew Mews, smiling at them before doing so.

After Deep Blue is defeated, Pie and the others return to their world. Ryou gives Pie the rest of the mew aqua, and Pie promises to use it to make their world beautiful again. Pie can be seen in the second volume's special section "Berry's Rush Report 2" as Berry asks what happened to the aliens and their planet after the events in Tokyo Mew Mew.

In the anime series, his voice actor is Nobutoshi Kanna. In the Mew Mew Power English adaptation his name is changed to Sardon and he is voiced by Pete Zarustica.