The mascot of the Genm Corp. game DoReMiFa Beat, the character of Poppy Pipopapo was conceived by Kuroto Dan, the teenage son of Genm CEO Masamune Dan. As a Bugster, Poppy's origin is traced to the Y2K bug, which left what would be known as the Bugster Virus on the younger Dan's computer shortly following New Year's 2000. Secretly incubating the virus by infecting the young Emu Hojo with it, Kuroto Dan would arrange for its matured form to be extracted by Michihiko Zaizen ten years later, using it to execute the Zero Day incident in the following year.
The Bugster Poppy Pipopapo had already emerged by the time of Zero Day, having been born from the Bugster Virus infection of Kuroto Dan's mother, Sakurako Dan, her host's life was sacrificed in the process as she succumbed to the Game Disease, thus completing Poppy's existence as a Bugster, and Kuroto also regretting having lost his mother. She was later assigned to be a navigator for the Kamen Riders, taking the guise of "Asuna Karino" in order to blend in more easily.
Finding that the Bugster Virus had been discovered by radiologists Taiga Hanaya and Jiro Maki, Asuna relayed this to Kuroto Dan. The two doctors were then taken to CR to undergo a series of tests concluding with a VR simulation in which, to Poppy's amazement, Taiga displayed exceptional proficiency with the Gashacon Magnum due to his experience in radiology. Impressed with the results, Kuroto chose Taiga to become Kamen Rider Snipe, though Taiga was hesitant to accept. Two weeks later, Asuna alerted Taiga to the case of a Bugster-infected patient whom he had treated before, Sasami Hishinuma. Proceeding to CR, the pair found Maki with a Gamer Driver and the Proto Bang Bang Shooting Gashat, intending to become Snipe in Taiga's place. Too late to stop him, the transformation was initiated by Maki only to fail and infect him with the Game Disease.
Five years later, a second outbreak of the Bugster virus occurred. While Hiiro Kagami had been selected as CR's Rider, Asuna proposed a second candidate: a prodigious and anonymous gamer known only as "M". Lexx on the other had suggesed the more active "N", deferring to his VP Kuroto let LExx do her thing while Poppy was ordered to reopen CR.
When Emu acquired the Gamer Driver and Mighty Action X when a patent infected himself tinking it the new game the Bugster took over the boy's body, wrecking havoc and after the fight Asuna was forced to explain the Bugster virus to Emu, and told him about trying to find someone to use the Driver, not expecting that Emu would take it for himself. Much to her shock, Emu was not only compatible with the system and capable of becoming a Kamen Rider, but he had been M all along. After watching him defeat the Salty Bugster, Asuna finally showed him to CR, revealing her true form as Poppy and christening Emu as Kamen Rider Ex-Aid.
When Genm took Hiiro and Emu’s gashat and drivers Blecker offers an alternative, Emu refused and suggested give the new equipment to Poppy who jumped at the chance and became Kamen Rider Amy where she then proceeded to help out Emu until Genm out of jealousy secretly returned Emu’s driver and gashat.
With the power of Kamen Rider Amy Poppy contues to help as she can wit hthe growing rider war but a level 2 rider can only do so much, it isn’t until much later after Kuroto himself become a catgirl and releases Kamen Rider Chronicle that he gives Poppy a second lease in the battle with her new Buggle Driver and Mighty Princess X to close the power gap.
Poppy Pipopapo was created to serve as a guide to the Riders in CR. She provides insight on the Bugster viruses, the Rider system, and helps to transfer patients to CR if the situation requires it.
Poppy's true personality is bubbly and energetic. As Asuna, however, she takes on a mature and no-nonsense persona, although her normal personality will momentarily surface if she is addressed by her real name. But there have been times when Poppy as Asuna reverts to her true personality on her own free will. Despite being based on a Vocaloid, ironically, it is revealed Poppy cannot sing very well without music to accompany her and causes distress to those around her when she does. It is also revealed during an encounter with Kamen Rider Hibiki that she has a fear of Oni and ran away scared upon first seeing him.
Name: Poppy Pipopapo
Age: 5
Birthday: Zero Day, 2011
Gender: Female