She was introduced in the 2005 title Devil May Cry 3: Dante's Awakening, as a demon hunter on a mission to avenge her mother's death at the hands of her father, Arkham.

Her appearance was based on Russian singer Julia Volkova,[citation needed] and was specifically designed with several traits to distinguish her from other heroines in the franchise.

While Lady does not play a major role in Devil May Cry 4 (2008), her design in that game was reworked to be more attractive, since the sequel takes place almost a decade after her introduction, when she was underage.

Various gaming publications have liked her role in the overall story of the franchise, and praised her debut as a playable character in Devil May Cry 4: Special Edition due to her unique movements.

[citation needed] While the character's designers sought to have her portrayed as a capable fighter, she was dressed in a school uniform in order to appeal to casual gamers; Daigo Ikeno tried to off-set the immature outfit by using oversized weaponry.

[1] Bingo Morihashi said that he originally intended for Lady to be older than series protagonist Dante, but director Hideaki Itsuno refused to agree to this, believing Japanese players would prefer the character younger.

The main character designer added sunglasses to hide her eyes of different colors, while expanding on her sex appeal to make players notice she was older than in Devil May Cry 3.

She first appears in Devil May Cry 3 as an antagonist to Dante, who eventually assumes her mission to stop her father's plans to destroy the world,[7] and decides to take her place upon finding her exhausted.

"[9] After Dante and his brother defeat Arkham, Lady formalizes her name in the game's denouement, telling her father that "Mary" is dead, before shooting him.

[15] In a special edition of the fourth game, she and Trish replaces Nero and Dante respectively in their own episode, whereas Lady's gameplay heavily focus on her firearms.

Fumiko Orikasa voiced Lady in The Animated Series, Special Edition of the fourth game, Devil May Cry 5, and Project X Zone.

[27] Similarly, Engadget commended the execution and handling of her plot on Devil May Cry 3, and how Dante ends up helping Lady to get revenge on her father.

[37] In their review of Special Edition, Hobby Consolas praised Lady's fighting style, although they noted it was the most difficult to master of any character in the game.

[38] Destructoid said she was a unique character in the game, because she is human who does not possess any demonic powers like the rest of the cast, which made mastering her fighting style entertaining.

[44] Fandom Post appreciated her addition to the cast; they liked the variety her character brought to the anime, as well as how she stands out in an episode fighting Trish over a misunderstanding where they end up becoming friends.

[47] Hyper had mixed thoughts about the episode where Lady meets Trish through a fight but compared the style of the two female characters to the franchise The Matrix because of how stylish they both are.