Momoiro Island is an island on the Grand Line. The Island is filled with pink animals and plants. Its name literally means pink in Japanese. It is home to the Kamabakka Kingdom, a place where "those with a heart of a maiden" gather. The name of the kingdom literally translates to "full of transvestites", which is exactly what the island is filled with.

The island and its inhabitants are just as well known as the legendary island of Amazon Lily. However, the islands are exact opposites of each other. While Amazon Lily is comprised only of women who behave somewhat similar to men (similar to the Amazons of lore), Momoiro is filled only with men who behave similar to women (usually the behavior of a transvestite). Nevertheless, like its counterpart, the island's population seems to be comprised of powerful fighters who abide and appear to be totally comfortable with their lifestyle, mostly due to their famous power-enhancing Attack Cuisine.