
This college kid wants nothing more than a quiet life. So when she's reborn as Yumiella, the hidden villainess of an Otome RPG, she's not exactly thrilled. Still yearning for peace, she abandons her evil duties to live a more discreet life. Until her gamer side kicks in, and she accidentally reaches level 99! Now, everyone suspects that she's the infamous Demon Lord. What future awaits her?
Cast: Fairouz Ai, Azumi Waki, Taku Yashiro
Season 1
12 episodes
1. The Hidden Boss Enrolls in the AcademyLight Magic and the Hero is a game that follows Alicia Ehnleit and her companions. But we're not following that story. The game's hidden boss no longer has any interest in antagonizing them. She simply wants to grind levels and live peacefully.TV-14CC24minJan 9, 2024
2. The Hidden Boss Shows Her True StrengthWhen the Royal Academy's crystal ball reveals that Yumiella is level 99, a number thought to be impossible, no one is willing to believe it... until she's prompted to demonstrate her abilities in her first magic class.TV-14CC24minJan 16, 2024
3. The Hidden Boss Is Summoned to the CastleThe king summons Yumiella to the castle and has her face off against the knight captain, Adolf, to prove that she's level 99. Yumiella then has a private meeting with the queen, who makes an unexpected request...TV-14CC24minJan 23, 2024
4. The Hidden Boss Attends Field LessonsYumiella learns that she appears as a solid black mosnter in Alicia's eyes, but she doesn't know why. Later, the academy's new principal asks Yumiella to help lead a field lesson.TV-14CC24minJan 30, 2024
5. The Hidden Boss Finds a Conversation PartnerAfter growing a bit closer to Patrick during the field lesson, Yumiella pairs up with him for a magic lesson, and they talk even more. When the next field lesson rolls around, Yumiella decides the students aren't taking it seriously enough...TV-14CC24minFeb 6, 2024
6. The Hidden Boss Participates in the Martial Arts CompetitionThe Royal Academy is holding a martial arts competition, pitting its students against one another in bouts of magic and might. While she was initially uninterested, Yumiella immediately joins the fray after discovering what the prizes are.TV-14CC24minFeb 13, 2024
7. The Hidden Boss Attempts DancingYumiella takes some time to reflect on the circumstances that led to the game version of herself down a path of villainy. An end-of-year dance presents an opportunity for Yumiella to learn who Alicia is pursuing, but someone else may have other plans.TV-14CC24minFeb 20, 2024
8. The Hidden Boss Meets a DragonA classmate asks Yumiella for help slaying a dragon in her family's territory. Yumiella recognizes the task as an event from the game that rewards the player with a means of transport and is eager to take up the challenge.TV-14CC24minFeb 27, 2024
9. The Hidden Boss Is Solicited by an Enemy NationA spy from the Kingdom of Remlest tries to recruit Yumiella. She declines, but their conversation makes her begin to question her feelings for Patrick.TV-14CC24minMar 5, 2024
10. The Hidden Boss Enters a DungeonYumiella finds the missing Alicia near a dungeon, so they enter it together to raise Alicia's level. As they travell, Yumiella realizes that the plot of Light Magic and the Hero is driving their actions and the paths they take.TV-14CC24minMar 12, 2024
11. The Hidden Boss Is Confessed ToYumiella suddenly finds herself a target of multiple assassination attempts—not that any of these hired killers hold a candle to her level 99 strength, of course. Then, she meets a young boy in town who gives her pause.TV-14CC24minMar 19, 2024
12. The Hidden Boss Battles the Demon LordAt long last, Yumiella and her companions reach the Demon Lord's castle, but his power is so great that she's the only one who stands a chance against him. Then the Demon Lord tells them the true story of his connection to Valschein's royal family.TV-14CC24minMar 26, 2024
Villainess Level 99: I May Be the Hidden Boss But I'm Not the Demon Lord
This college kid wants nothing more than a quiet life. So when she's reborn as Yumiella, the hidden villainess of an Otome RPG, she's not exactly thrilled. Still yearning for peace, she abandons her evil duties to live a more discreet life. Until her gamer side kicks in, and she accidentally reaches level 99! Now, everyone suspects that she's the infamous Demon Lord. What future awaits her?
Creators and cast
- Created by
- Sho Tanaka, Keisuke Sano, Tomoyuki Ohwada, Hirotaka Kaneko
- Studio
- Jumondou, KADOKAWA, AT-X







































