Deirdre Fou Roseblade

Deirdre Fou Roseblade (ディアドリー・フォウ・ローズブレイド) is the third year student of Holfort Academy, which make she is a senior of Leon and one of the heiresses of Roseblade Household.

Appearance
Deirdre has a round butt and big chest. Her noble fidget hair is colorful together with her eyes, had curly blond hair──which formed in the shape of drills. Her academy attire consist of white shirt beneath a black blazer and a red knot around her neck, a grey skirt, black pantyhose and black shoes

In the novel cover her usual attire changed to a blue and a white and grey dress with a black pantyhose.

Personality
Deirdre is a proud young lady with an indomitable spirit. As the daughter of the illustrious Roseblades, Deirdre takes pride in her family's accomplishments and prestige. She is determined to live up to its name and will not stand idle to any insults toward her family.

Though she may look too arrogant occasionally, Deirdre has a truly noble soul. Unlike many vain and entitled nobles in the capital, Deirdre strongly believes in Noblesse's oblige and is willing to risk her life to fulfill her obligation as a noble. During the principality's raid on the capital, Deirdre took part in civilian evacuation and led her household knights personally. Her action would have cost her life without Leon's just-in-time interception.

Deirdre is sharp-tongued and brutally honest. She is very blunt when giving criticism and advice. Furthermore, Deirdre does not hesitate to remark on unpleasant truths if she deems it necessary.

Like her sister, Dorothea, Deirdre has an unsettling quirk behind her mask of lady. From time to time, She displays the traits of a dominatrix, a woman who takes the dominating sadistic role in BDSM activities. For instance, after witnessing Leon's boldness, Deirdre smiled wickedly, stating the desire to make Leon her pet. And when she recalled how Leon beat Pierre into a bloody pulp, Deirdre was aroused and had the look of ecstasy on her face.

Volume 2
After Angelica is captured, Deirdre is among the students who didn't want to get involved. However, after some derisive words from Leon, she, along with the other nobles decide to fight The Principality.

The day after the rematch with The Prince's Entourage, Leon was sulking in his room before the award ceremony with Deirde, Angelica, Olivia, Clarice, his parents with Nick and Jenna present there.

Volume 3
*Information will be added soon later.*

Volume 4
Deirdre arrived at the Alzer Republic on a mission from Roland. Due to unexpected disturbances in the Republic, the King of Holfort sent her to investigate the situation. Deirdre used this opportunity to visit Leon at Marie's mansion. After a usual greeting, she informed Leon aftermath of his rampage and the fate of his opponent, Pierre. Deirdre also handed over letters from both Roland and Leon's two fiancées. Before she left, Deirdre tested Leon a little on whether he regretted his actions, and she was satisfied with his answer.

It was revealed later that during her mission in the Republic, Deirdre went shopping with Leon and enjoyed dinner with him at an expensive restaurant.

Volume 8
Shortly after Leon's promotion to marquis, Deirdre accompanied her sister, Dorothea, to the Bartfort territory. Aside from establishing a familial tie with Leon, her father hoped to finally marry Dorothea off after several unsuccessful attempts. Deirdre, who was already acquainted with Leon, was thus a suitable companion. The meeting had a rough start since Dorothea was entirely unimpressed with the mundane appearance and meek attitude of Nicks. Deirdre had to intervene personally to stop her sister from leaving prematurely. In addition to her sister's uncooperativeness, She had to deal with Clarice, who came to investigate the meeting.

However, to Deirdre's surprise, Dorothea's attitude dramatically changed after Nicks tried to scare her off with a collar. She then enthusiastically supported her sister, who acted like a maiden in love. Unfortunately, they misunderstood the situation, and Nicks only acted aggressively on the instruction from Leon. Deirdre was furious at Leon and his deception after learning the truth. She immediately left with her heartbroken sister without even speaking to him.

On their way back, the Roseblade's ship was under attack by a group of air pirates. Dorothea became incredibly stressed and coiled over. Deirdre, having survived many dangerous situations, remained composed despite her fear. However, she felt surprised as these pirates were unusually skilled. Luckily, the reinforcement from the Bartfort family came to rescue them just in time. After the battle ended, Deirdre came on the deck of the Einhorn and gave her gratitude to Leon. As Leon apologized for his dishonest behavior, Deirdre personally invited Leon and his family to the main territory of Roseblade Household.

*Information will be added soon later.*

Alternative Routes
*Information will be added soon later.*
 * The Second

*Information will be added soon later.*
 * The Third

Family
*Information will be added soon later.*
 * Dorothea Fou Roseblade (Older Sister)

*Information will be added soon later.*
 * Unnamed Father & Older Brother

Friends
Leon is Deirdre's junior and love interest. Because of the general submissiveness of male nobles and House Roseblade's fearsome reputation, Deirdre rarely sees a man standing up to her. Thus, she quickly became interested in Leon after he displayed fearlessness toward her and proved his actions could match his boasts. Deirdre is particularly enamored with Leon's aggressiveness and tends to blush whenever he becomes aggressive or commits violent acts. For instance, Deirdre showed an ecstatic face as she imagined how Leon mercilessly battered Pierre. Her feeling for Leon remains strong even after he is engaged with Angelica.
 * Leon Fou Bartfort (Junior/Love Interest)

Although Leon's feelings toward Deirdre are unclear, there are hints of his affection. Deirdre is among the women Leon truly enjoys spending his time with. And when he angered her with a thoughtless ploy, Leon was visibly depressed, similar to when Noelle rejected his first rescue attempt.

Trivia

 * Deirdre mentions to Leon that Roseblade house will accept him even if married, even so, she would prefer to elope with him.
 * Deirdre is the exclusive light novel character, thus she does not appear in the WN.
 * When Deirdre and Leon first meet, his brazen attitude entices her and makes her mention that he would make a great 'pet' that she would keep by her side, which gives the opinion that she might be some sort of dominatrix.
 * Deirdre is a feminine given name of Irish origin. It is also the name of a tragic heroine of Irish mythology whose beauty caused kings and lords to battle over her.