OVA
Description
Valkyrie, a princess from Planet Valhalla in the Dolphin Constellation and one of eight royal siblings, flees a political marriage by escaping to Earth. Her spaceship crashes into Kazuto Tokino’s bathhouse, nearly fatally injuring him. To save him, she shares half her soul, triggering her transformation into an eight-year-old child. This youthful form embodies a playful, mischievous demeanor, obsessing over cartoons like *Little Bunny Piyoko*, manga, and chaotic household disruptions, yet she intermittently recalls her royal heritage and past adult experiences.
Shifting between forms requires kissing Kazuto to synchronize their souls. As an adult, she regains regal poise, tactical wisdom, and her full powers: flight, energy projection, protective barriers, and the Key of Time—a weapon enabling control over time and space. Initially usable in both forms, the Key later becomes exclusive to her mature self, capable of altering physical attributes like augmenting a companion’s figure, though such changes revert once its influence ends.
Her bond with Kazuto matures from reliance to mutual romantic devotion. Despite initial discomfort with her child appearance, he embraces her true identity, leading to their royal-family-approved engagement. Persistent delays plague their union, caused by her erratic transformations and cosmic threats like space pirate invasions. During a ceremonial crisis, Valkyrie fractures into distinct adult and child entities, coexisting independently—the adult pursues marriage while the child indulges in pranks.
Allies and rivals shape her journey: Sanada, her devoted maid, aids her through extremes, including assembling a brainwashed catgirl maid brigade. Princess Hydra evolves from rival to ally, forging a partnership cemented in battle. Childhood friend Akina Nanamura’s unspoken affection for Kazuto fades into stable friendship as Valkyrie remains unaware of the tension, focusing on her own romance.
Critical arcs trace her soul’s recovery via mystical asteroid water, trials by Princess Mehm to prove Kazuto’s loyalty, and clashes with galactic adversaries. Her growth intertwines mastering dual identities, balancing sovereignty, and embracing human vulnerability, all while navigating an enduring quest to solidify her marriage amid cosmic chaos.
Shifting between forms requires kissing Kazuto to synchronize their souls. As an adult, she regains regal poise, tactical wisdom, and her full powers: flight, energy projection, protective barriers, and the Key of Time—a weapon enabling control over time and space. Initially usable in both forms, the Key later becomes exclusive to her mature self, capable of altering physical attributes like augmenting a companion’s figure, though such changes revert once its influence ends.
Her bond with Kazuto matures from reliance to mutual romantic devotion. Despite initial discomfort with her child appearance, he embraces her true identity, leading to their royal-family-approved engagement. Persistent delays plague their union, caused by her erratic transformations and cosmic threats like space pirate invasions. During a ceremonial crisis, Valkyrie fractures into distinct adult and child entities, coexisting independently—the adult pursues marriage while the child indulges in pranks.
Allies and rivals shape her journey: Sanada, her devoted maid, aids her through extremes, including assembling a brainwashed catgirl maid brigade. Princess Hydra evolves from rival to ally, forging a partnership cemented in battle. Childhood friend Akina Nanamura’s unspoken affection for Kazuto fades into stable friendship as Valkyrie remains unaware of the tension, focusing on her own romance.
Critical arcs trace her soul’s recovery via mystical asteroid water, trials by Princess Mehm to prove Kazuto’s loyalty, and clashes with galactic adversaries. Her growth intertwines mastering dual identities, balancing sovereignty, and embracing human vulnerability, all while navigating an enduring quest to solidify her marriage amid cosmic chaos.