both dramas:
have a strong female lead who works hard from the bottom to the top
focuses on three main couples
romance between older guy and younger woman
workplace drama
Drama around investment
Relationship between an older mentor and his younger apprentice.
FL switches from secretary to an investor
Supportive female colleagues and mentor
These dramas are similar in the "young people struggling to survive in the big city" part. It has a very similar feel to both. But the novel has only the similarity that in both the male leader is the "boss"