Watashi wa Ittai Nanyaku Reijou Nan deshou!?: Taihen Osoreirimasu ga, Eigyou Skill de Isekai Kouryaku Itashimasu

Yuri, an office lady working in the sales department of a confectionery company, collapses and wakes up to find herself in the world of the otome game she used to play! However, even though she knows the game, there's something strange about all the characters... She should be the heroine, but for some reason everyone around her dislikes her and calls her the "sinister young lady"... What role does she play now?! Yuri's reincarnated life begins, using the experience she gained in the sales department to somehow return to her original world!

(Source: Akita Shoten, translated)