Already read it until chapter 35. Honestly, this manga is kinda more refreshing than another slow-life genre. Maybe because the MC is a kind and emphatic person. She wishes everyone a good rest and sleep as much as her own. She wants to work hard for others and cares about what others feel. She is also grateful and never thinks her power or position is something she gets herself. Saint is really fitting for her title. I also like her mentor who is always strict with her, "yah you are op and help the nation to prosper but you are still awake at night and it's a violation of the rule, so clean that corridor. Without magic ok."
I don't know, personally, I hate slow-life genre MCs, because like the world is in danger or whatever, and what they are doing is being annoyed at it. They will be so ungrateful bastard that thinks their power and wealth are something they get on their own. The people around them will treat them as god despite them being so lazy and never doing anything that require them to break a sweat.