Both dramas try to balance suspense and romance. "You're My Spring" has more focus on romance than suspense.

Both movies have to do with young female protagonist approaching her thirties, still finding herself, and figuring out what she wants out of life including her love life.

Both dramas have a different theme each episode within a different setting that includes the main character.
Kishibe Rohan wa Ugokanai is more of a science-fiction drama while Takeuchi Ryoma no Satsukyu is more of a slice of life drama, however I found it interesting that both dramas included episodes in which each could be pursued as a drama / movie.

Calla and Ditto were both made around the same time so they have similar cinematic feel. Both movies also have the same theme of star-crossed lovers who connect through time travel.

Both are horror films that tackle religious themes and doctrine. As the main characters delve deeper, they second guess who and what is truly evil.