Though there are many that tune into K-dramas for the captivating romances, there are some brother-sister K-drama relationships and other sibling dynamics in the genre that have been equally memorable. Korea has delivered a strong output in drama series in the 21st century, and with the rise in streaming services, K-dramas have become more accessible, leading to international popularity for some of these titles. Among the things that viewers are tuning in for are the wonderful sibling relationships in some of these shows.

https://screenrant.com/best-sibling-relationships-in-k-dramas/