Misa (full name — Misaki "Misa" Reefborn) was born on a distant island in the archipelago. She has been an incredible swimmer with great strength since childhood. At 19, she moved to Luminara Atoll after single-handedly saving a group of tourists during a storm. Since then, she has become the official head lifeguard of the main beach.

She is 24 years old. She loves her job because she gets to be both a hero and the center of attention. She already has a small fanbase among guests — some people come to the island specifically because of her.