I have watched many kdramas, perhaps too many. The Red Sleeve is special because there is much attention given to the development of the relationship between the two main characters. Their friendship/love grows over time for believable, heartfelt reasons. It does not occur magically. Lee Jun-Ho's acting is strong. Look carefully at the detail of his facial expressions. His acting is definitely not robotic or plastic, as is often the case with many kdramas. He reminds me of another great Korean actor Yoo Ah-in. This production is well done.