Who is the main villain in Overlord?

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Tags

1. #nazarick
2. #light
3. #overlord
4. #protagonist
5. #novel
6. #master
7. #momonga
8. #remaining
9. #kingdom
10. #villain
11. #supreme
12. #serving
13. #series
14. #guild
15. #being
16. #sorcerer
17. #named
18. #formerly
19. #before