Both series conceptualize love between two souls of a past life by way of reincarnation in the form of a boss-employee power dynamic in a workplace setting. Whereas the novelist from First Love, Again initially rejects his soulmate in this lifetime because his employee-the editor-is a man, the director from The Director Who Buys Me Dinner insists that he and his secretary immediately start dating in this lifetime upon first meeting each other. At the beginning of both series, the novelist and the director (the bosses) both have active memories of their respective soulmates of a prior life, in stark contrast to the editor and the secretary (the employees) who must revive their lost memories as the two series progress.
So In first love again....his first love is reincarnated each time because of the love that connected them. So he gets reborn and reborn each time until they can be together.
In Once Again, the ML kinda like time travel? To go back to that moment he caused trauma in his first live's life.
What's similar is that if you look closely you'll notice that this isn't the first time...the ML had already travelled in time before and it's like a constant loop because eventually the Mal's "lover" would make the same choice again.
Anyway, if you like the one, you'll like the other.
In Once Again, the ML kinda like time travel? To go back to that moment he caused trauma in his first live's life.
What's similar is that if you look closely you'll notice that this isn't the first time...the ML had already travelled in time before and it's like a constant loop because eventually the Mal's "lover" would make the same choice again.
Anyway, if you like the one, you'll like the other.
Both are mini dramas in which the leads love story ended tragically in the past and one of the leads has been waiting centuries for his love to reincarnate and get their happily ever after. However when he finds them, they are very different (different gender vs. completely different personality).