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The original title in Japanese is Zenryaku, Onii-chan wa Seijo ni Narimashita.
The translation is almost up to date with the raws, they go up to chapter 54 so far
https://comic.iowl.jp/titles/151077/contents?page=6&paginate=true
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Raw updates are here ( https://comic.iowl.jp/titles/151077/volumes) and here ( https://www.cmoa.jp/title/231800/) and it's the full count so far (18 chapters). I think cmoa updates faster though but I can't remember. Today's chapter is the very beginning of chapter 18.
Anyone has the korean name? Or better, the raws?