First, I must note that I found this series recommended by viewer ENIGMA05. I find her reviews, at least on c-drama, thorough, binge-watcher-friendly, unbiased and to the point. And you can rely on her ratings. I would never have chosen a film with a sports theme, but gave it a go and, boy, it did deliver on feel-good from the first episode.
Falling into You (26 episodes) offers a straightforward story, great leads, and OST. For me it did not feel like the May-December or Noona romance as the age gap is small. It's only because of their roles (teacher-student) that this becomes "an issue". Both lead actors are well chosen, impressive performance by the male lead. I also liked the theme of friendship explored in the film.
For those who like light rom-coms, but without squeaky female voices or their homes stocked with soft toys (well there were only 2 soft toys, so I consider it progress) or some other annoying depictions of women.