Popit, sometimes spelled Poppit, is a resident of Lilluru Village (or Riruru Village), home to tiny gnome-like aliens stranded on Earth. His name occasionally appears mistranslated in subtitles as Peter, Sobido, or B-chan. He possesses distinctive blue hair, a common trait among his species. Within the village, Popit is one of Memole's closest companions.

He exhibits a somewhat stubborn personality but demonstrates consistent loyalty and protectiveness toward Memole. Popit frequently accompanies her on exploratory missions and assists in resolving challenges involving their human friend Marielle. His father handcrafts violins, indicating an artistic family background.

Popit joins group adventures alongside villagers like Lupang and Pea. His role often involves supporting Memole's endeavors to maintain her friendship with Marielle while ensuring their species remains hidden from humans outside their trusted circle. This includes navigating threats like avoiding Marielle's housekeeper Penelope or dangerous animals.

His interactions remain focused within the main storyline, emphasizing his dependable presence in Memole's social circle. Popit's relationship with Memole includes subtle moments suggesting potential romantic undertones through their frequent shared screen time and cooperative dynamic. His rapport with other villagers, particularly Lupang and Pea, reinforces his integration into the core group assisting Memole.