Looking for a webtoon

About a princess who went back in time after being killed. The ml is a powerful stoic black haired dude and he's working with two other men closely to overthrow the current king, fls father. The fls brothers are father are all evil, and she's politically weak. She has the power to travel through doors and I think make powerful potions. I believe she has white hair as well. She tries to get along with the ml and his friends so that they won't kill her. It went on hiatus after 30ish chapters last year for the end of the season. Thanks in advance!