Looking for this manga (again)

If someone could help me find this manga or if someone knows the name of this manga plz share with me.. I've been looking for this manga for a long time now. Would appreciate your help.
I just remember some of the scenes from the manga. Don't remember any characters or their names or stuff. Just some scenes I'm writing down plz if someone knows this manga plz share the name (〒﹏〒)
In this one, the FL was somewhere in today's time and was reading her favourite webtoon on phone when something happens and the next moment she's inside that webtoon she was reading. It further says that her fav character (who was a prince I think) died somehow then the webtoon world refreshes and now she's determined to not let him die again and help him rise on top.
About the details.. as much as I remember.. the FL had red hair and was very bold (not sure if she had a title in the manga, think she's a concubine but may be wrong). The setting of the whole manga is almost similar to 'For My Abandoned Love' but I remember just this one scene where she's new into the palace and the other females try to bully her by painting on her and stuff. Later in the webtoon there was one more scene when she catches the villainess' evil action of trying to poison her bcoz then she asks for silver cutlery and it turns black when in contact with poison (I know it's very smart, right? But she is only able to do that bcoz she's from the future). So the villain is caught red handed there. Don't remember anything more than this.. if someone recalls any manga after reading this, plz share the name.
(￣∇￣")