TV-Series
Description
Shuka is a Card Fairy from Planet Cray, gifted with the ability to hear the voices of nearly forgotten cards. Driven by this connection, she collects and safeguards these cards, believing she protects them eternally. Her intervention in the human world's timeline begins when she takes Blaster Blade from Toshiki Kai before he can give it to Aichi Sendou. This single act creates a major distortion, resulting in a reality devoid of cardfighting and altering key relationships, such as Ren Suzugamori never meeting Kai. Shuka remains initially unaware that her own actions caused this distorted timeline.

Her primary goal becomes correcting this distortion and restoring the original timeline. Witnessing Emi Sendou's ability to manifest powerful units like Blaster Blade, Shuka partners with her. Together, they form the magical girl duo Blaster Pair, battling entities called Jammers who exploit the distorted timeline to cause havoc and destroy Vanguard. Shuka presents herself as Emi's cheerful, childlike fairy companion, expressing a happy-go-lucky attitude and deep concern for Emi's well-being. However, this persona masks a more ruthless determination. She withholds critical information, specifically her ambition to summon the powerful unit Majesty Lord Blaster, which she believes is essential to fix the timeline, declaring her willingness to sacrifice anything, including trusted allies, to achieve this goal.

Her relentless pursuit of Majesty Lord Blaster leads her to seek out Blaster Dark after encountering the mysterious Mask the Dark (later revealed as Ren Suzugamori). Ren confronts Shuka about her secretive actions, particularly the "flower picking" – the act of taking cards like Blaster Blade, which caused the world's distortion. This revelation shatters Shuka, as she genuinely did not realize her role in creating the crisis. Overcome with guilt, she attempts to return Blaster Blade to Aichi, but he captures her, using her as bait, forcing Shuka to confront the consequences of her actions and methods.

Despite reconciling with Emi and continuing their fight against Aichi and his generals, Shuka's efforts to summon Majesty Lord Blaster fail. In the climax, facing an insurmountable threat to the timeline's restoration, she makes the ultimate sacrifice. She burns her book, releasing all the cards she had collected over her lifetime. This act corrects the distortions but causes her to fade away, leaving Emi heartbroken. An ambiguous ending hints at her possible return or reincarnation, shown through an actress resembling her appearing on stage.