PQ manifests as a diminutive, hand-sized advisor robot shaped like a red, tomato-like blob with facial features. In the television series *VS Knight Ramune & 40 Fire*, PQ acts as the primary summoner of the Kaiser Fire mecha for protagonist Lamunade, fulfilling a role analogous to Tama-Q from the preceding series. PQ routinely suffers physical mistreatment, including being pinched by Lamunade during their exchanges.

The character reappears in the sequel OVA *VS Knight Ramune & 40 FRESH* (internationally titled *Knights of Ramune*), now accompanying the holy virgins Cacao and Parfait on their quest to find the Fourth Warrior Ramunes. Here, PQ serves as a spiritual advisor and expert on metaphysical topics, frequently delivering exposition about their mission. PQ's dialogue often embarrasses Parfait with inappropriate or poorly timed remarks, leading to recurring physical abuse such as being stretched, thrown, or stepped on by the characters.

Throughout the OVA, PQ actively engages in critical events: aiding in the rescue of captive children from the Giga Genos spaceship, assisting sabotage operations aboard the vessel, and participating in escape attempts using experimental mecha. PQ later helps Parfait and Lemon infiltrate the Giga Genos to confront the impostor Ramunes IV and collaborates with Don Vodka to expose the truth about the false warrior. PQ remains a constant companion during the final battle against the Dark Knight mecha, witnessing Lemon's emergence as the true Fourth Warrior.