Both about strong bond between 2 brothers
- Brothers deeply caring about eachother
- Evil existing in the little brother while the older bro does his best to help him lose it

- parents die and the oldest child will have to bear everything and raise his siblings
honestly, this is one of the best dramas I've ever watched if you are interested in sibling relationships and sacrifces being made you HAVE TO watch this :)

- parents die and the oldest child will have to bear everything and raise her siblings
- The oldest becomes both the father and mother and goes through extremely hard paths

Similarities:
- Brotherly love (big brother does anything for his little brother)
- Death of parent will totally change the course of the brothers' lives
Differences:
- The story line is very different.. In Breathless, the big brother is very disciplined and is a role model to everyone around him