Responses
King's avatar (manga & novel tho not conplete. Sorry)
Does this count though? The antagonist(?) is like very complex and almost too perfect (for some understandable reasons) and the Manga as a whole is honestly rly great http://www.mangago.me/read-manga/monster/
Hello, is there any mastermind manga like code grass (Lelouch) or Death note (light/L) or No game no life (that awesome sibling duo) etc it doesn't have to be only main character even antagonists or side characters are ok.
Anime/light novel(if complete) is fine as well.