MC was an office worker at a company where everyone is gay, but they were all over each other all the time so the work was always pushed onto her, she had enough at one point and quit, but they kept asking her to come back, one employee went to her cause he wanted help for sexual harassment by a superior.
So, this is a bit of an older one, not too far back tho, shoujo or josei set in a korean historical environment, not transmigration but isekai.
MC works at a call center and has an impeccable work smile, spends a long time with an unsatisfied, unreasonable customer but remains very polite, turns out this 'customer' is an emperor who in some weird way communicated with her, unclear how, she ends up in that period of the past, where he hires her to be his 'translator' empress aka to do problem management while he curses and threatens to kill everyone, she's there to defuse the situation basically. Comedy aspect was strong.
But who did Irene end up married to? They call her Queen but wasn't she the sister of the king? Ik she was supposed to return so she could marry but am drawing a blank about it. Sorta sad we didn't get to see some of Arte's life in those 5 years in court.