My Favourite Romantic Drama ! So Realistic that i watched it many times

This drama is the first drama that i really loved after i started to watch K-dramas. This got me hooked to k-dramas and i started to understand how good K- dramas are. The last part was so romantic . Jung was absolutely fantastic . I never got bored watching it. Son ye was very cute and adorable . the way she adjusted with a boy younger than her was a masterpiece . i felt heart broken and happy ? ? . the only thing i can say bad this drama is that the supporting cast was not at the same level as lead roles.