Honestly, I hesitated really long before I decided to watch this drama. It's not because of the story or the Actors, because Song Seungheon is my favourite Actor. I am hesitating when it comes to dramas with morte than 30 1 Hour Episodes, because there is very much makjang and they are too long. So I have a love-hate Relationship with them.
But I love Song Seungheon and I am a big Fan of many other Actors and Actresses who were in this drama. So I gave it a try, even though I was spoiled how it ends.

Story: The Story is amazing. A boy witnessed the death of his father and wants to take revenge of the Man who killed his father. The drama takes place over more than a few years, I think it were 30 years with some time jumps. A nurse swiches two babys and changes the Life and the future of two families. The older Brother lives only for his family, He gives up everything to gain power even the love of his life. He lives his life for his younger brother who wants to become a prosecuter and takes revenge by law. But their Life changes when the dark secret comes to light...What should he do? His younger brother is the child of his biggest enemy...

Acting/Cast: First of All, I am a fan of more than one of the Actors, so this could be long.
I want to begin with my most favourite Actor. Song Seungheon plays the oldest Son of Lee Kichul, who died when Lee Dongchul was five years old. Since the day his father died he lived only for the revenge and his family. He loves his younger Brother, Lee Dongwook, even when he learns about the truth. For his brother he would give all he has. His Life, his Luck, all he has. Song Seungheon is an amazing Actor. I don't know why he is often criticized for his performences. But in this, you can't criticize him, because his acting is that of one of the best Actors in Korea. From his first until his last Appearance he stands out with an amazing Acting. Yes, he is very attractive, but I love him because of his acting. And in EoE he shows us that he can act. His role is very difficult to play, I think. Because Lee Dongchul has a tough life. He had to be not only an older brother but also a father. Because of circumstances he can't hold his promise but he helps his family even though he is far away. His deep love for the daughter of his boss shows us is warm side outside his family. He is a good Man who is uneducated but intelligent and a very good businessman. He gives up his love because of his revenge and because he knows the two of them live in two different worlds. Song Seungheon made me cry very often, because of his intense acting. When he cried, I cried. And he cried a lot. But I am one of the woman who like men who can cry. I mean, why shouldn't men cry?? They are humans as well as women are. When he laughed, I laughed. He was the one who had to suffer the most and his acting showed it in an amazing way. I think I know why he got the Daesang for his performence.

His younger Brother Lee Dongwook was played by Yeon Jung Hoon. I know his as a villian in Mask and there was his acting brilliant. So I was wandering if he can act as a Man who loves his family and wants to get revenge on the murder of his father. All in All his Acting as a victim. I was impressed by his Acting and the characters development. I mean he suffered a lot, too. His character fighted the whole drama. He was tricked, he had a difficult time when his brother wasn't next to him, but he survived the Fight against his enemy who later turned out to be his real father. I was very impressed by the chemistry between these two brothers who loved eacht other. They give up everything for each other even though the find out they aren't related by blood.

Lee Dahae played Min Hyerin and was supposed to be the Main Actress in this drama who has a conflict between her affection for the two brothers. Honesty, I was a fan of her coupled up with Lee Dongchul because I wasn't a big Fan of the other female Lead. I hoped the two of them would end up with each other, but Lee Dahae quit the drama because of some reasons. So she wasn't able to appear until the end. Min Hyerin is a character who goes through a big change throughout the whole drama. She is the daughter of a businessman who owns a newspaper. Lee Dahae is one of the most talented Actresses out there. I liked her in nearly every drama I watched with her. She did a very good job and I was very sad, when she didn't appear anymore.

Lee Dongchuls Love Interest Gook Youngran was played by the (at that Time) rookie Actress Lee Yeonhee. I didn't liked a character because she was nerve wrecking. Her Acting was good, but not amazing and her character was...annoying. I don't understand why he would give up everything for a woman like her. But his Love for er was real and she loved him, too.

Park Haejin as Shin Myunghun had a very big development in his character. The whole time I hated him, until the second half. I pitied him because everyone hated him. He was in a very big pain. His Acting was very good, but nothing compared to his Acting in Bad Guys. But this drama was one of his first so I understand that.

Lastly, Han Jihye. She played Kim Jiyeon who is loved by Myunghoon and Dongwook but she only loves Dongwook. He Character development was the only one I disliked. She was nice at the beginning, but after years passes she wasn't pitiful but awful. I don't know why, but I hated her halfway.

The Family of the Lee Brothers were very nice, even thoug sometimes I hated the Mother. Lee Dongchuls Friends were okay, and the Veteran Actors lived up with my Expectations.

All in All, the Cast was very well picked. I am not one of the Viewers who are satisfied with the allround cast everytime, but here I was.

Music: The Soundtrack was wonderful. I liked the Songs very much.

Rewatch Value: Even though the drama is very long I think I will watch it again in the future, because the cast is really amazing and the story is very good. It has all. Romance, Action, Rivalry...