The Mew Mews are Pai's greatest foe. They always seem to ruin his or any of the other Aliens' plans.

Kisshu was the first of the aliens to appear. But when he could not complete his mission, Pai and Taruto where sent to take over. Pai and Kish don't agree on things all the time. Like in episode 49, where Kisshu has his idea instead of waiting for Deep Blue to come out, Kisshu would steal the Blue Knights power. Pai did not agree with this at all and wanted to wait for Deep Blue to arrive to help their planet.

Taruto, in the begining of Tokyo Mew Mew is seen with Pai. They seem to get along well for comrads, but in the end, Taruto follows and supports Kisshu's idea, leaving Pai alone.

Deep Blue is Pai's leader. He along with Kisshu and Taruto await for the day when Deep Blue arrives. Pai is willing to follow Deep Blue till the end. In the end, Pai has a change of heart stops Deep Blue's attack upon Tokyo, which in the end costs him his life.