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The Hidden Boss Battles the Demon Lord
At 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.
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Other episodes for this season
![The Hidden Boss Enrolls in the Academy](https://image.tmdb.org/t/p/w300/5sedICx0GSGU9ZlpcOfSy8tRMhj.jpg)
![The Hidden Boss Shows Her True Strength](https://image.tmdb.org/t/p/w300/y5WoU4nt84Zeo1imiD8EQHA5Sie.jpg)
![The Hidden Boss Is Summoned to the Castle](https://image.tmdb.org/t/p/w300/1uzdOru0jTrmhnk7x9mmUwmKU1l.jpg)
![The Hidden Boss Attends Field Lessons](https://image.tmdb.org/t/p/w300/8MIIRc5bvKn5x52LGFdwRs8Y6kM.jpg)
![The Hidden Boss Finds a Conversation Partner](https://image.tmdb.org/t/p/w300/zy3ahTivttlHsKfGmJHKqYii5UA.jpg)
![The Hidden Boss Participates in the Martial Arts Competition](https://image.tmdb.org/t/p/w300/5LFj0BGulWDNJiT5LkWZUSmR340.jpg)
![The Hidden Boss Attempts Dancing](https://image.tmdb.org/t/p/w300/ppGCDbudR4eiKP9LMXmEuDavgeO.jpg)
![The Hidden Boss Meets a Dragon](https://image.tmdb.org/t/p/w300/wEBnM70aliGDwJya6xjY5x090JM.jpg)
![The Hidden Boss Is Solicited by an Enemy Nation](https://image.tmdb.org/t/p/w300/rl66HrVpGUygWZEC8x3DCs5olQB.jpg)
![The Hidden Boss Enters a Dungeon](https://image.tmdb.org/t/p/w300/bRwxauzHpCRD0Zuxxp0JVsnsCig.jpg)
![The Hidden Boss Is Confessed To](https://image.tmdb.org/t/p/w300/nAHcGqzkZnRNhVYgtyCmSetBE4U.jpg)
![The Hidden Boss Battles the Demon Lord](https://image.tmdb.org/t/p/w300/xVkNL0YF2hfIW4cByTmbSbsnkmV.jpg)