Luca

Luca supports peaceful coexistence between humans and the people of Fish-Man Island. Her signature on Otohime's petition demonstrates a willingness to endorse the queen's vision despite the long history of hostility between the two groups.

She reacts with understandable terror when that political choice places her in danger.

As a mermaid, Luca can breathe underwater and possesses the aquatic mobility natural to her race.

She has no established combat techniques, Devil Fruit powers, or Haki abilities.

Luca's name is read aloud among the citizens who signed Otohime's petition. Hody Jones and the New Fish-Man Pirates identify such supporters as enemies of their ideology.

Her brief appearance helps illustrate that Hody's campaign threatens ordinary citizens simply for supporting coexistence with humans.

Queen Otohime's political ideals receive Luca's support through her signature on the petition.

Hody Jones condemns Luca and the other signatories as traitors because they supported Otohime's plan.