Isma is a young fishing girl who resides on the outskirts of a village located on an island believed to house the Sea God.
She has short hair with long bangs that occasionally cover half her face. Her eyes are rounder than average, and she has a few freckles on her nose.
Isma claims that her father was courting a merrow, although she admits she is entirely human. Despite this, she can fish as skillfully as any merrow. Schierke noticed an unusual aquatic aura around her. Because of this and the legend of the merrow sealing the Sea God on her island, the villagers shunned her, leading her to move to the outskirts of town.
Later, she discovers she can transform into a merrow (mermaid) when she dives into the water to save Isidro, who had fallen overboard.
Ultimately, she decides to join Guts' group.










