Juvia is first introduced portraying an emotionless face, seeming more secluded from everyone, including members of the Phantom Lord Guild.After she joins Fairy Tail, she develops a happier demeanor. She is obsessed with Gray Fullbuster to the point of considering anyone who shows affection towards him a rival. And when Meredy threatened him, Juvia loses her calm demeanor and entered a somewhat satanic-appearing state that frightens Meredy and even Erza