Star Dress: Leo Form (レオフォーム Reo Fōmu) is one of several forms of the Star Dress Spell.
Whilst in the Leo Form, the user becomes cloaked in an elegant, frilled, black ball gown that is slit up their left leg and tied with gold sash that sits around their hips. A black, frilled choker sits around their neck, and a ribbon with the mark of the Leo zodiac emblazoned upon it falls between their breasts. The accompanying sleeves of the dress are detached, sitting on the user's upper arm and falling to their forearm, where they flare outward. Around the bodice of their dress is more golden trim, curving inward under the user's bust. Additionally, the user sports black heels and their hair is now tied up in a quaint bun that is decorated with a black flower. Due to having taken on some of Leo's power, Leo's zodiac sign appears upon the user's right breast.
Regulus (王の光, レグルス Regurusu): While in this form, the user becomes able to use Regulus in a manner similar to Leo: imbuing parts of their body to do enhanced melee damage. The user's hands and feet become cloaked in a similar golden light to that of Leo's when they are using their powers.