Action, Comedy, Seinen, Adventure, Fantasy
- Lone but confident hero Leon decides to apply for the Demon King's Army but gets rejected
- He finds aid from the four royal army generals and his new job at the demon castle begins
- A medieval fantasy world of demons and magic where a knight seeks refuge in enemy territory
After saving the world, the strongest hero who has no place to go anywhere · Leo. Power that is too strong can not enter the peaceful world …… Such a place of employment where he arrived – the former enemy, the Magus army! The 2nd Kakuyomukon.
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