Both provide an interesting spin of family. The film focuses on the inner workings of relations, showing the deep reflections of the main characters. We see how they interpret and process what life hands them and later, see how they decipher and resolve those issues to try and achieve a happy medium. An astonishing film for all cultures.
Both are based on a popular manga series; both have a dynamic cast and both have awesome fight sequences.
Both stories generate from the main characters orchestrated downfall, which forces them to seek revenge on those responsible. However, although it's understandable, they at some point become just as corrupt as those they are seeking vengeance upon. Ultimately, they have to choose... justice or injustice.
Both dramas revolve around siblings and other family members. The series reveals the life, loves and ambitions of each individual and the routes they choose to take to achieve their goals. Both dramas were humorous, but had enough serious content to balance the series. Excellent cast; you may have a hard time picking a favorite.