ONA
Description
Pri Forsythe, also known by her masked alias Quadra, is a central character in the anime Beyblade Burst QuadStrike, serving as the deuteragonist of the story. She is the younger sister of Pax Forsythe and is introduced to the series as the mysterious masked blader Quadra, who makes a striking impression at the Grand Masquerade Bey Tournament before her true identity is eventually revealed.

In terms of background, Pri began blading as a way to have fun with her older brother Pax, who is himself a blader. Before stepping into the wider blading world under her own name, her initial foray came in the guise of Quadra, a masked competitor fighting with her lightning elemental Beyblade, Lightning Pandora. As the story unfolds, she gains access to other Pandora beys tied to different elements, including Tidal Pandora, which channels water, and Twister Pandora, which channels wind, with her collection reflecting the elemental themes that run through the season.

Her personality has two distinct sides. Outside the stadium, Pri is an optimistic girl who excels at dancing and carries a warm and friendly demeanor. In battle, her competitive nature comes to the surface, and when she takes on the Quadra persona, she becomes far more enigmatic and intense, presenting herself as a formidable and somewhat mysterious rival. This contrast between her everyday self and her masked self is central to her character.

Pri's motivations are closely tied to her brother. She began blading to share time with Pax, and when he asks her to compete as Quadra, she is driven by loyalty to his goals and to the research he is conducting. Pax gives her strict instructions about how to use Pandora in important matches, and he also tells her to keep her mask on while battling, since revealing her identity could compromise their research data. Pri works to follow his direction even as her own competitive instincts push her to excel in her own right.

Within the story, Pri occupies a key role among the central bladers. As Quadra, she is a presence that captures the attention of Bel Daizora early in the season, and her actions help drive the tournament plot forward. Later, after removing her mask and revealing that she is Pri, she becomes more openly involved with the other main characters, participating in training, team battles, and the Champion's Challenge Tournament. She is also shown handling unusual tasks with skill, such as serving as a puppeteer during a puppet-show tournament, which highlights her versatility outside of standard blading competition.

Her key relationships include her bond with Pax, who remains her most important connection and the figure she ultimately supports through her blading. Among her peers, she forms a friendship with Hanna Suiro, with the two sharing a sleepover at the Suiro house, and she works alongside Bel Daizora and Ranzou Kiyama in various competitions and training exercises. These relationships help bring her out from behind the mask and integrate her into the group.

Over the course of the series, Pri develops from a secretive masked competitor acting on her brother's behalf into a more openly integrated blader who balances her loyalty to Pax with her own desire to compete and improve. The pressure Pax places on her during the later stages of the Champion's Challenge shows how her role shifts as she grows more confident in her own abilities and decisions.

Notable abilities include her skill as an elemental blader. Her Beyblade, Lightning Pandora, channels the lightning element and serves as her signature partner in battle, while her later beys expand her reach across water and wind elements. Beyond blading, she is an accomplished dancer, and her dexterity extends to puppeteering, which proves useful in at least one tournament setting.