Hito wo Katte ni Sanbou ni Surun ja Nai, Kono Haou.: Game Sekai ni Hourikomareta Otaku no Kurou

Miyu Enoshima, college student and excessive gamer, suddenly finds herself thrown into the world of the RPG game she's been playing. After running her mouth about what's going to happen in the game, she's taken captive by a charming yet intimidating Lion-like man, King Aldaberto! Without a say in the matter, she now finds herself as the main counsel for his majesty!

(Source: MangaPlaza)