Corona is a teenager girl who has long brown hair and green eyes. She wears her hair in two ponytails and wears orange nailpolish. Her outfit is consist by a short yellow shirt, light blue shorts, dark blue belt, yellow gaiters, colorful shoes and orange stockings.
Corona is a impulsive, proud, irascible girl with a temperamental personality. She is almost manic in her behavior, constantly trying to impress the other Orochi with her showmanship, but her energetic exterior hides a dark past.
A flashback scene in the anime depicts her lying on a bed next to an older man, with much of her clothing torn; the exact nature of the liaison, as well as the reasons behind it, are left unsaid though some have stated that the older man had tricked Corona into thinking that she would become an idol but was really just "using" her ( this might explain why she has delusions thinking she is a pop star) therefore the scene is accompanied by the suggestion that Corona was "betrayed by her dreams".
Corona made her debut in the series in episode 1 when the Orochi arrives. She is usually seen in every episode chatting with other necks and fighting with Reiko, who described her as being "weird". In episode 7 she attacks the miko along with Nekoko , Girochi and Reiko, but she is defeated by Soma . Later Corona is petrified by Chikane when she became an orochi. At the end of the series she (as well as the other Orochi's) becomes purified and regrets her actions for when she was an Orochi.
Corona's last appearance in episode 12 showed her performing on a stage singing which depicts that she had finally accomplished her dream and found happiness.
Her mecha, Ooube no Senazuchi, nicknamed Final Stage, takes on the forms of a wheel with a demonic eye in its center and of a giant centipede with an anthropoid head and arms. In personal combat, Corona throws lipsticks at her target. This attack is not as harmless as it might sound, since these lipsticks carry a kinetic charge capable of causing explosions.
- There is some indication that she carries the mark of Orochi on her left breast.
- Her name, Corona, mean "crown" in Latin and Spanish.