Nullitas ～The Counterfeit Bride～
Nullitas: Die falsche Braut / Nullitas: Itsuwari no Hanayome / Nullitas: La remplaçante / Nullitas: The Half-Blood Royalty / นูลลิตัส เจ้าสาววิวาห์ลวง / ヌリタス～偽りの花嫁～ / 奴莉塔絲～偽裝的新娘～ / 娜丽塔斯·一半的伯爵小姐 / 눌리타스 : 절반의 백작 영애 / Nulliitas: The Half-Blood Royalty
A nameless child raised as a boy discovers at seventeen that she is the illegitimate daughter of Count Romagnolo. She has served the renowned family while dreaming of becoming a knight, and her mother has kept her true identity secret to protect her. When the count learns of her existence, he plans to use her to shield his daughter, Maylene, from an unfavorable engagement. The child, who has lived without a name for seventeen years, is given one: Nullitas, meaning “nothing.” Her life begins to change drastically.