I just remember one of the arcs (if not the first) with her being an actress and trying to figure out who her target was out of her two costars... She had sleep with her target in order to travel to another world i believe (well, to finish the mission which i think was gaining their favour...? I may be wrong about this).
I've read something similar but what I read is she knows who's the target but she like (not emotionally) one of her co-star and she kinda don't like the target. She also got forced by an another co-star who knows that she's having a snusnu with the co-star she somewhat like. I'll return to you once a came across it again.