So having this drama get the cast confirmation news out the same time that The Remarried Empress K-drama started airing is great timing, because this is also a manhwa/webtoon adaptation and has the same Western royal backdrop. The K-drama version of webtoon Sister, I am the Queen in This Life is now confirmed with the full cast, with Kim Tae Ri leading as the titular queen joined by Ha Yoon Kyung as the sister in the title and male leads Jo Han Gyeol and Moo Jin Sung. The female lead is betrayed by her whole family in the first go around and goes back to the past and re-does her life with different decisions to get her revenge. It’s basically the K-version of C-novel Rebirth of the Malicious Empress of Military Lineage. It’s not confirmed yet if this drama version will keep the same Western royalty backdrop but if it does it just needs to call up Disney to borrow the whole costume and set from The Remarried Empress lol.