Lucia Rea Regulus

Lucia Rea Regulus (ルーシア・レア・レグルス), nicknamed Lu (ルー), is one of Touya Mochizuki's wives. Lu is also the third princess of the Regulus Empire and she is currently living with Touya and everyone else in the Duchy of Brunhild.

Appearance
Lu appears as a young girl about the same age as Yumina Ernea Belfast. She has green eyes and neck-length silver hair, in which she wears a silver tiara. however, the strands near her face are much longer, reaching to her chest, so she holds them are in two "sleeves", much like Elze Silhoueska. When she first appeared in the series, she wore a torn apart white silk dress. her primary outfit now consists of a green bow and indigo-colored vest over a white shirt, a white pleated skirt and black tights.

Personality
Lu is a competitive person and she hates to lose. She also diligent and loves to cook.

Touya Mochizuki
Touya met her when he saved the empire from being overthrown by the imperial army in a coup. He agrees to marry her after the Emperor of Regulus creates a truce with the King of Belfast. This was the beginning of the creation of the Duchy of Brunhild. She is very much in love with him. She loves to cook for him and cares very much for him.

Yumina Ernea Belfast
Lucia met her after Touya saved her from a coup in her country. She is in good terms with Yumina.

Abilities

 * Twin Sword Wielder - She uses twin sword as her main weapons in a fight.
 * Super Taste Sense (超感覚) - it is Lucia's "Dependent Trait" (眷属特性). As a "Retainer" (眷属) of Touya Mochizuki, she is bestowed by Touya's divine power with a super sensitive taste bud.

Paraphernalia

 * Phrasium Twin Swords - Lu received twin swords made of phrasium (crystal material) from Touya. The swords are the same length as Yae's "Tōka". Because it made of phrasium, the swords are lightweight and its durability is stronger than any material exist.
 * Waltraute - Lu's exclusive Frame Gears which is a retrofitted raid type FG.
 * Sacred Ring - Lu received platinum gold ring from World God as wedding gift which was given through the great spirits. The ring is a sacred treasure which can act as receiver for Touya's divine power.

Quotes

 * "From now on, please trust me with your daily meals, okay?" - Lucia before her wedding kiss.

Trivia

 * According to the character introduction :
 * She is on good terms with Yumina Ernea Belfast.
 * She is good at cooking.
 * Lucia wears Mars Astronomical Symbol on her bow-tie.