typically refers to Edith Wharton's Pulitzer Prize-winning classic, but it also appears as a popular contemporary manhwa/webtoon title, notably Yeonwoo's Innocence (often translated with "Innocence" in the title). The Classic Novel by Edith Wharton
Set in the 1870s Gilded Age of New York, this story explores the suffocating social norms that dictate the lives of the upper class.