Foo Fighters | In need of water

Foo Fighters is originally portrayed as an obedient minion whose sole purpose is fulfilling Pucci's orders. After meeting Jolyne, she begins to grow a sense of individuality throughout the story. F.F. making a discourse on how plankton can become intelligent

Foo Fighters's personality is centered around the fact that she possesses "intellect" but little life experience. During her introductory arc, her only goal is obeying Whitesnake's order to guard the DISCs. As their guardian, Foo Fighters ruthlessly attacks and kills anyone who approaches the DISCs' hiding place, regardless of their threat level. Being an intellectual being, Foo Fighters places great importance in herself and implores her enemies to recognize her as sentient by calling her by her name. She also quotes the astronomer Fred Hoyle to claim an "intellect" is guiding the universe, even predating it, to make the point that even insignificant beings like plankton are capable of possessing intelligence.

When Jolyne shows mercy toward her and saves her from dehydration, F.F. discovers a new outlook on life and grows interested in her, pledging to protect Jolyne and accompany her in disguise as the prisoner Atroe.As a result of experiencing the new environment of the prison, she becomes extremely curious about everything around her, constantly asking questions to people and experimenting with the world, such as when she tries to do the opposite of what Atroe would have done. While she gets along with others, F.F. has the strongest affinity for Jolyne for giving them freedom and "intellect," which she fears losing above all else. F.F. can't live without drinking constantly

Because of her great dependency on water, F.F. is obsessed with it and goes to great lengths to constantly hydrate herself. F.F. carries a cup of water and will fight anyone over it, as well as drink any liquid as long as it contains water, be it blood or spit. Being a mass of plankton with no experience of society, she isn't disturbed by any of this.

F.F. eventually comes to accumulate enough positive memories of her companions that she comes to value them over her own safety, eventually sacrificing herself to close Anasui's wounds with her plankton. Jolyne meets her ghost for a short time as she happily contemplates her spirit form, a final confirmation that she was truly intelligent and alive.

She has a great dependency on water and will die without out. she is willing to do whatever it takes to get water

Foo Fighters (フー・ファイターズ, Fū Faitāzu), commonly referred to as F.F. (F・F, Efu Efu), is a primary ally featured in the sixth part of the JoJo's Bizarre Adventure series, Stone Ocean.

A self-maintained colony of intelligent plankton that serves as her own Stand, F.F. initially serves Enrico Pucci as a guard for the priest's DISC collection. However, she soon allies herself with Jolyne Cujoh out of gratitude, taking the form of a deceased prisoner named Atroe to protect her

F.F. can change her appearance at any time. However, her habitual appearance is that of the deceased prisoner Atroe, a young woman of average height and slim build with a cap/hair styled with serrated edges at the ends on her head, who wears overalls with built-in shoes. In the anime, the spikes on the ends of F.F.'s cap/hair jut out more compared to Atroe's, which are kept closer to her neck.

F.F. is commonly shown carrying a 32 oz. cup of water when she is not near a water source.

F.F. is her own Stand, her very existence relying upon the Stand DISC inserted into her. Her unique nature allows her to freely manipulate and access the minds of a number of corpses as hosts, fill and heal the wounds of others with her plankton, project her flesh as bullets, and even divide herself into multiple sub-bodies.

Despite being a colony of plankton, they all serve under one hive mind and act female