Ikémens Trash

Please help me find this manga/manga(T T I don’t remember the specifics but I remember the FL transmigrated to a novel and the world premises are like everyone got powers but those who got powerful eventually goes crazy. For some reason the fl doesn’t have any friends and the only friend she got was this duchess who always wear a mask because of some scar, and one day during a party at their house she went berserk and created a bubble n stuff (the duchess power was like smth with confining space so she trapped herself in a bubble to kill herself in the middle of the party) so the fl went inside the bubble n calmed her down.

Then instead of the original story where the duchess dies and the ml takes over as Duke the duchess retired to some country and the ml takes up the role. I don’t remember the rest but only this like specific scene cause it made me cry when she reminisce how important the fl is to the duchess(T T please help me find this!!