It shows that love doesn't make sense. People are irrational with their feelings. Koko was out of the blue. Linda and Banri finally let out of their pain that they had bottled up.
This is the first romance series I watch that has so much drama. I know Supreme Marvel and the others dropped it from the beginning because it was slow and boring. For the later phase, it gets saturated with a lot of drama. I still watch this series to the end,