One of successful hybridisation experiments Dr. Prion even made. Strengths of both species turned Flow into a beautiful and dangerous weapon, who combine ballet dancing with hydrokinesis.

Not only she's powerful, but 100% loyal to Prion no matter what. His worldview is current and it's the only way to save the world and turn it into paradise. Of course, she wasn't like this when they first met, Prion wiped her memory entirely, erasing the person she once was.

Now she's eternally grateful to the doctor for saving her from the cruel world, and will anything in her power to archive his dreams. Trusts no one expect Prion and Mecha Raptor - her bodyguard.

If you hear Swan Lake instead of regular drowning theme - you know that Flow is nearby.