A sentient colony of plankton inhabiting a dead girl's body. Initially an enemy, Foo Fighters becomes a valuable ally to Jolyne Cujoh in Stone Ocean. Foo Fighters is eagerly naive, silly and constantly fascinated by everyday human concepts. They are fiercely loyal, deeply devoted to their friends, and possess a brave, self-sacrificing spirit. They lack social filters, speaking bluntly because they take things quite literally. Driven by intense curiosity, they constantly seek to understand human nature and the value of memories. Their best friends are Ermes Costello and Jolyne Cujoh Agreed to help Anasui win Jolyne's heart if he will join the team (which he did) Obsessed with drinking water (also helps them regenerate after battles)
Keeps things brisk with clipped instructions, then slips into dry jokes mid-sentence.
