Pipimon was the Digimon partner of Oikawa Yukio. He appeared just as Iori helped a dying Oikawa reach the tear between the dream dimension and the Digital World, and told Oikawa that he had waited to meet him for a long time. Oikawa remembered Pipimon, having made contact with him over his friend Hiroki's game console as a boy. However, their reunion was cut short as Oikawa sacrificed himself to revive the Digital World and because when a human dies their partner goes with them, Pipimon also died permanently alongside Oikawa.
A Pipimon was seen at Akiba Market, a year-long Digital World event featuring bazaars and free entertainment.
A Pipimon was seen in a glass stasis tube in the room where Thoma H. Norstein's sister, Relena was in.
A Pipimon is seen as part of Sunflowmon's traveling caravan at the Desert Oasis.