Shirahoshi

Princess Shirahoshi, also known as the Mermaid Princess, is the giant mermaid princess of the Ryugu Kingdom. Despite her immense size, she possesses a gentle and timid personality, often prone to tears, but also shows surprising bravery and kindness. She is the key to controlling the Sea Kings and is one of the Ancient Weapons.

Quick Facts

  • What is Shirahoshi's title?

    Mermaid Princess

  • What is Shirahoshi's age?

    16

  • What is Shirahoshi's species?

    Giant mermaid

  • What is Shirahoshi's height?

    1187 cm (38'11")

  • What is Shirahoshi's birthday?

    April 4th

  • What is Shirahoshi's blood type?

    X

  • Where does Shirahoshi live?

    Ryugu Palace, Fish-Man Island

  • What is Shirahoshi's personality?

    Fragile, easily frightened, cries easily, but also kind and sweet

  • What is Shirahoshi's relationship with King Neptune?

    Daughter

  • What is Shirahoshi's special ability?

    She can control the Sea Kings (Ancient Weapon Poseidon)

  • What is Shirahoshi's pet?

    Megalo (a giant shark)

  • What is Shirahoshi's favorite food?

    Seaweed grape pasta

Description

Personality

Shirahoshi is a gentle and kind mermaid princess, but also incredibly timid and fragile. Years of isolation in the Hard-Shell Tower have left her naive about the outside world and easily frightened, prone to tears and emotional outbursts. Despite her fragility, she possesses a deep well of compassion and unwavering loyalty to her family and kingdom, prioritizing their well-being above her own. Her inherent goodness is evident in her refusal to harbor hatred towards those who have wronged her, even in the face of immense personal tragedy. While initially depicted as a crybaby, Shirahoshi demonstrates growth and increasing resilience throughout the series, showcasing a developing strength of character. Her initial fear and naiveté gradually give way to a burgeoning courage and determination, particularly when protecting her people. She learns to trust and form strong bonds with others, especially the Straw Hat Pirates, who help her overcome her fears and embrace the world beyond her tower. This journey of self-discovery highlights a significant aspect of her personality: her capacity for growth and her evolving understanding of strength and responsibility.

Abilities

Shirahoshi's primary ability stems from her heritage as the reincarnation of Poseidon, an Ancient Weapon. This grants her the power to command the Sea Kings, colossal creatures of immense power. While initially unintentional and triggered by strong emotions, she later demonstrates conscious control over this ability, summoning them to aid in protecting Fish-Man Island and even communicating with them. This power is considered one of the most fearsome in the world, capable of both immense good and devastating destruction. Beyond her Poseidon abilities, Shirahoshi possesses superhuman strength and speed befitting her gigantic size. As a mermaid, she is naturally a powerful swimmer, far exceeding the speed of other aquatic creatures. She also possesses Observation Haki, though its extent remains largely unseen. Her immense size also grants her considerable physical strength, allowing her to easily lift and carry individuals much larger than average humans.