totty

im trying to find this webtoon/manga where the mc was adopted by a rich woman and she looks exactly like her biological daughter and she was supposed to be like matched w this rich guy but she didnt want to so she asked mc to be in her stead lol the mc is really nice, shes a brunette, and the male lead is an absolute idk bastard? narcissistic? its a modern. and it has smut. its a manga i think??? but like its kind of a webtoon as well? bc its one panel type of