I took a closer look at my vintage clothing book list and found that it was either about daily life (including the relationship line) or about the career line.
The author is so good at writing and foreshadowing, and the character's personality and ideas change very smoothly! It was the part about amnesia that made me cry. Don't stab me next time!
I actually saw a lot of controversy in the comment section about this article, but I think it was really well written. The male protagonist has a plump image, and I can understand the choices made by the female protagonist. So recommended!