Story: This drama is about two childhood friends. One of them dies at the age of 19 and comes back 12 years later in the body of himself 12 years ago. The story sounded interesting so I decided to watch the drama. The storyline diedn't diappoint me, although I think it could be have better. The first few episodees were very good. The past and the first meeting after 12 years between the group of friends were very good. But I have to say that the drama became boring around the middle. The last episodes were okay.

 Cast: I have mixed feelings about the Cast. Let me begin with the Actors and Actresses I was looking out for. First I want to talk about one of my favourite Actors, Yeo Jingoo. I was expecting much because he did well in all the dramas I watched with him. And he didn't disappoint me. Jingoo is an excellent Actor. I was waiting for a romance drama in which he would play the main lead. I know he 20 years old but for his age he very mature so I hoped for him to get an adult role in the near future. Even though his role wasn't an adult because his role didn't changed he did very well. But he is one of the actors who have 'Problems' with their counterpart and that's makes me very sad and angry, too because he has so much potenzial.
 The next Actor I was amazed by was Kim Jinwoo. I like him very much in Remember – War of the Son so I was excited how he would do. He is a very good Actor and I don't understand why he doesn't get any main roles in main time dramas. I mean he is over 30 and has so much potenzial that he could play a main role. He has some emotional scenes in this drama and in my opinion he is very good when it comes to emotions.
 Kwang Dongyeon played one of Yeo Jingoos younger brothers who has some issues and a hard life after the death of his oldest brother. Dongyeon and Jingoo are the same age so I think it was a little strange that Dongyeon played an older person because he looks younger than Jingoo. He played his role with amazing skills, I could feel his emotions and I think he did very well.
 The last Actor who was a reason for me to watch the drama til the end was Yoon Sunwoo. It was my first full drama with him and I think he as a very good Actor. I don't understand why he is so underrated, maybe my taste and eyes a bad...I watched some scenes of him in Moon Lovers (but I didn't watched the whole drama, it is on my plan to watch list) and I think he is good. In this drama he played the second oldest sibling of the Sung Family who becomes a doctor with success.
 The two Sisters were plyed by Kim Gaeun and Kim Hyejoon. Both of them did very well. The other friends of Haesung (YJG) were played by Park Jinjoo (who did really well, too), Shin Sooho (was okay, but he didn't have many scenes) and Lee Shieon (who was my favourite friend after Kim Jinwoo).
 The biggest disappointment were Lee Yeonhee and Ahn Jaehyun as well as the chemistry between the two leads. Honestly the best chemistry was between the male friends, the siblings and for the couples between Park Jinjoo x Lee Shieon and Kim Jinwoo x Kim Gaeun.

 Music: I don‘t really remember the music…

 Maybe you think now „Why did this person the drama a 7.5?“. And this is a question I am asking myself since I finished the drama. It is all the thanks to the male Cast (without Ahn Jaehyun). They saved this drama for me.