The One Piece Megalo Shirahoshi figure captures the regal presence of the Mermaid Princess with a dramatic display pose. Shirahoshi stands with measured grace, one hand lifted slightly as if summoning a gentle water current, while her flowing hair cascades around a sculpted crown and fin-like details. The sculpture emphasizes a fluid silhouette, with layered robes or dress elements that ripple along a sculpted wave-based base. The color palette blends pearl white, soft pink accents, and sea-blue highlights to evoke an underwater palace atmosphere. Subtle translucency is used on the cape or fins, enhanced by light-catching metallic paints to suggest ocean gloss. The base is designed as a stylized ocean swell to support dynamic weight balance, keeping the figure centered and elegant from any viewing angle.

Shirahoshi is the mermaid princess of Fish-Man Island and a pivotal character tied to the ancient weapon Poseidon. In the story, she is shy and gentle, often overwhelmed by danger, yet her voice carries the power to command Sea Kings when the moment demands. This figure embodies her inner resilience and hidden strength: despite her delicate appearance, she carries the responsibilities of her people and the fate of the ocean within her. Her journey intersects with Luffy and the Straw Hat crew during the Fish-Man Island arc, where friendships, trust, and courage are forged. The Megalo interpretation highlights her royal heritage, her bond with water and whales, and the moment she realizes her own influence over the seas, making her a symbol of hope and protection for her kingdom.