Null Peta: Doki♥ Nullnull Petapeta! Mizugi Darake no Onee-chan Taikai!

Null & Peta face off in a surreal wrestling match against their international versions. The sisters must overcome these foreign counterparts in a chaotic contest. It remains uncertain whether any of the alternate Petas possess cooking abilities. The referee's response to the ongoing antics is also unclear.