Akuyaku Reijou Level 99: Watashi wa Ura-Boss desu ga Maou dewa Arimasen  

Villainess Level 99: I May Be the Hidden Boss but Im Not the Demon Lord, 悪役令嬢レベル99 ～私は裏ボスですが魔王ではありません～, Akuyaku Reijou Level 99 ~Watashi wa UraBoss desuga Maou dewa Arimasen~, Villainess Level 99 ~I May Be the Hidden Boss but I'm Not the Demon Lord~, ชีวิตไม่ง่ายของนางร้าย LV99, 反派千金等級99～我是隱藏頭目但不是魔王～, Akuyaku LV99

In the Varschein Kingdom, where people with dark hair are stigmatized, Eumiella Dolkness, daughter of a count and hated from birth due to her pitch-black locks, is the hidden boss. At five years old, she remembers her past life in Japan and decides not to focus on the romance aspect of the game. Instead, she trains her rare dark-type magic. Eumiella's goal is to avoid becoming the hidden boss and staying out of the limelight. However, when she enters the magic academy, her level 99 status comes to light, making her stand out with her abilities that are unmatched. To make matters worse, the original heroine begins suspecting her as the demon lord. Can Eumiella achieve a peaceful life?

Akuyaku Reijou Level 99: Watashi wa Ura-Boss desu ga Maou dewa Arimasen has been published in English as Villainess Level 99: I May Be the Hidden Boss But I'm Not the Demon Lord by One Peace Books since August 15, 2023.