OVA
Description
Valkyrie, one of the eight princesses hailing from Valhalla in the Dolphin constellation, escaped an arranged marriage by fleeing her home planet. Her fateful flight unintentionally brought her spacecraft hurtling toward Earth. Losing control during atmospheric entry, she crashed into the Tokino Bath House, mortally wounding its owner, Kazuto Tokino. To save him, Valkyrie transferred half her soul into Kazuto. This act triggered a profound transformation, physically and mentally regressing her into an eight-year-old child. This new form exhibits distinctly childish behavior, speech patterns, and interests, including a love for the "Little Bunny Piyoko" television show and reading manga.
Stranded on Earth, Valkyrie resides at the bath house. Kissing Kazuto allows her to temporarily revert to her adult form when their emotions synchronize. This mature state restores her wisdom, maturity, and full powers: flight, energy manipulation, defensive shields, and wielding the formidable Key of Time weapon, typically reserved for her adult self. Early instances, however, show her accessing the Key in child form under unclear circumstances. The transformation remains temporary, vulnerable to emotional shifts or environmental factors like the healing properties of meteor water.
Her relationship with Kazuto evolves from obligation to genuine romantic affection, leading to their official engagement approved by the Valhalla royal family. Their marriage faces repeated delays due to complications from her unstable transformations. During a chapel attack by space pirates in the third season, a collapsing mural causes a metaphysical rupture. This event splits Valkyrie into two distinct entities: one permanently locked in child form, the other permanently in adult form. Both versions continue to coexist independently.
Valkyrie interacts with various characters throughout her journey. She shares a protective, affectionate bond with her loyal royal maid, Sanada, who supports her unconditionally despite her childlike antics. Her initially adversarial dynamic with Princess Hydra—tasked with retrieving her—shifts toward mutual respect and camaraderie, especially after Hydra undergoes similar de-aging. Childhood friend Akina Nanamura harbors unrequited feelings for Kazuto, creating underlying tension, though Valkyrie's child form often remains unaware of this rivalry.
In the "Bridal Training Boot Camp" OVA, Valkyrie participates in simulated marital scenarios orchestrated by the Queen of Valhalla, who questions her readiness for marriage. These exercises involve randomized challenges with Kazuto and others, testing adaptability and problem-solving in domestic contexts. Valkyrie approaches these trials with her childlike perspective blended with a sincere desire to become Kazuto's bride.
Her powers fluctuate significantly. While her adult form commands formidable combat and magical capabilities, her child state occasionally accesses unexpected abilities, such as inadvertently altering Akina's physical attributes with the Key of Time. The adult Valkyrie also confronts Valkyrie Ghost in the second season—a manifestation of ancient princesses' collective sorrow—introducing contrasting thematic elements.
Stranded on Earth, Valkyrie resides at the bath house. Kissing Kazuto allows her to temporarily revert to her adult form when their emotions synchronize. This mature state restores her wisdom, maturity, and full powers: flight, energy manipulation, defensive shields, and wielding the formidable Key of Time weapon, typically reserved for her adult self. Early instances, however, show her accessing the Key in child form under unclear circumstances. The transformation remains temporary, vulnerable to emotional shifts or environmental factors like the healing properties of meteor water.
Her relationship with Kazuto evolves from obligation to genuine romantic affection, leading to their official engagement approved by the Valhalla royal family. Their marriage faces repeated delays due to complications from her unstable transformations. During a chapel attack by space pirates in the third season, a collapsing mural causes a metaphysical rupture. This event splits Valkyrie into two distinct entities: one permanently locked in child form, the other permanently in adult form. Both versions continue to coexist independently.
Valkyrie interacts with various characters throughout her journey. She shares a protective, affectionate bond with her loyal royal maid, Sanada, who supports her unconditionally despite her childlike antics. Her initially adversarial dynamic with Princess Hydra—tasked with retrieving her—shifts toward mutual respect and camaraderie, especially after Hydra undergoes similar de-aging. Childhood friend Akina Nanamura harbors unrequited feelings for Kazuto, creating underlying tension, though Valkyrie's child form often remains unaware of this rivalry.
In the "Bridal Training Boot Camp" OVA, Valkyrie participates in simulated marital scenarios orchestrated by the Queen of Valhalla, who questions her readiness for marriage. These exercises involve randomized challenges with Kazuto and others, testing adaptability and problem-solving in domestic contexts. Valkyrie approaches these trials with her childlike perspective blended with a sincere desire to become Kazuto's bride.
Her powers fluctuate significantly. While her adult form commands formidable combat and magical capabilities, her child state occasionally accesses unexpected abilities, such as inadvertently altering Akina's physical attributes with the Key of Time. The adult Valkyrie also confronts Valkyrie Ghost in the second season—a manifestation of ancient princesses' collective sorrow—introducing contrasting thematic elements.