Fillonce

Fiancee is a mermaid and is an employee at Mermaid Cafe.

Personality
Like all other mermaids, Fiancee is kind and caring, and is apparently fun loving.

Abilities
Being a mermaid, Fiancee has several abilities unique to her race. It is not yet shown but she may have the ability to talk to fish and call out to them using sonar waves, which is one of the basic abilities found in all mermaids and some fishmen. Apart from the ability to breathe underwater, as a mermaid she also has the ability to swim very quickly at speeds much faster than the flying fish used by the Flying Fish Riders. However, like any mermaid, she is vulnerable on land.

She also appears to be a skilled dancer, as she is dancing during the banquet for the Straw Hat Pirates.

An Unpleasant Surprise
Fiancee and two other mermaids found a tightly-sealed barrel in Mermaid Cove. The mermaids thought that since the barrel is sealed tightly, it must contain treasure or expensive alcohol.Later,Ishilly cames Fiancee and two other mermaids start opening the barrel unaware that it was used by the Straw Hats to imprison Caribou.

After Ishilly loosens some of the bolts, Caribou pops out and terrifies the unwitting mermaids. Caribou proceeds to capture the three mermaids with the power of the Numa Numa no Mi as they try to flee and scream for help. Therefore, Fiancee and her two friends become the first victims in Caribous's mermaid kidnapping scheme. The other mermaids at the cove still had no clue that the barrel they found had something to do with Fiancee's disappearance and the citizens of Fishman Island blame the Straw Hats for the kidnappings.

Celebration
After the battle against the New Fishman Pirates has ended, Fiancee and the other kidnapped mermaids were found in the Ryugu Palace. Later that evening, she was seen among the Mermaid Cafe dancers, performing at the banquet held for the Straw Hat Pirates.