Null Peta: Doki♥ Nurunuru Petapeta! Mizugi-darake no Oneechan Taikai!

Null and Peta, the inseparable sibling duo, return for a special outing that throws their peculiar dynamic into a brand new, delightfully chaotic setting. When a grand competition is announced, promising an array of vibrant and unexpected challenges, the brilliant but eccentric Null finds herself reluctantly drawn into the fray. With her loyal, albeit sometimes clumsy, robot sister Peta by her side, the stage is set for an experience that will test their bond and their wits in equal measure. Expect a generous serving of their signature brand of humor as these two navigate a series of outlandish scenarios. This special episode leans heavily into the playful and the absurd, delivering a high-energy romp filled with unexpected twists and turns. Prepare for a uniquely entertaining adventure that showcases the inventive spirit and comedic timing that fans have come to adore.

✦ AI-drafted summary