Ryuuzaki Umi stands in a dynamic, mid-action pose, capturing a moment of decisive movement. The 1/8 scale highlights the sculpted hair, long and flowing in a deep blue shade with subtle highlights, giving a sense of wind. Her outfit blends the series' signature blue color scheme with armor-like detailing, including crisp lines, gold accents, and fine texturing on belts and buckles. The expression is focused and determined, conveying her resolve to protect her friends. The base design is unobtrusive yet stable, with a hint of magical energy implied by translucent effects on the blade or accessory. The overall presentation balances elegance and courage, true to the character.

Ryuuzaki Umi is one of the three heroines who are summoned from modern Tokyo to Cephiro to save a world on the brink of chaos. Possessing elemental water powers and a precise, agile fighting style, she champions justice and loyalty to her friends. At first her strong will and competitive spirit push her to test her limits, but as the journey continues she learns to trust her companions and to work as a team. Umi's leadership, quick tactical thinking, and protectiveness of others make her a central pillar in the quest to restore peace to Cephiro. Her growth throughout the series embodies courage, friendship, and steadfast resilience in the face of danger.