It is about the hotly discussed themes of "keeping", "mistress" and "naked marriage". The heroine is a somewhat pretty college student who is kept by a rich man for money. The story begins here.
It is interspersed with topics that young people have to talk about, such as the heroine's friend being a mistress, naked marriage, etc.
"You look a lot like my first love." This is the first sentence the hero says when he meets the heroine. Yes, a cliche story about a rich man keeping a college student begins.