
It’s so stereotypical, but it’s the same thing for every manhwa/manga like this. The mc might’ve been shut out but that doesn’t mean they don’t hear the rumors, especially what’s popular amongst the people.
Like gossip in the newspapers, catchy headlines and everything like that. Everyone who is important and is going to be on her side, she chose because they had done smth big enough that she remembered them before she regressed

its because she got engaged to gregory barker first. So from age 17 to 25, she fought with the barkers to annul her engagement (due to his cheating). During that time, she's still in the real world so she knows stuff. At age 25, her father wants to marry her to duke tessen, that's when she went to hell. So she only knows 8 yrs worth of "future".
Love the general plot, kinda wished she just came back from Hell, but whatever.
My main issue is that she suddenly knows stuff that happened back in the real world. Did I miss how she's so knowledgeable about every little thing? Cause wtf