This drama is the result of what happens when you try to include too many elements into one to try and make some extravagent but in reality it turns out to be a big disappointment. Despite the first few episodes being starting of being a ball of confusion, it had a promising start as everyone had the expection of those questions being answered in the later episodes. But the later episodes only brought more confusion. Especially when the element of time travel was introduced, it became a complete mess and I lost all hope for getting any answers to any of my questions. I felt that without the element of time travel, this drama could've had a much better delivery and be easier to understand and answer so many questions. For example, someone else could've saved Lee Gon in the beginning and Lee Gon could've just defeated Lee Lim in the present time rather than having to travel back multiple times and over complicating the plot.

In my opinion, the biggest weakness of this drama the romance between the main leads which was given so much airtime through out the entirety of the drama when there was still so many things they needed to be explainted answered. Along with the lack of chemistry between the leads, the romantic scenes also felt like a filler but when there are so many elements that need explanation, it just doesnt make sense to put romantic filler scenes in the middle.

Lee Minho and his acting is just another weakness this drama has. I'm not saying he's a bad actor but he's definitely not great. He has charm and that's about it. In my opinion, he doesn't have the charisma and power in his voice that Lee Gon's character needed. By the end of the drama I wasn't even sure if it was just bad acting or bad script writing of Lee Gon's character or maybe a combination of both, but I really wanted to jump through the TV screen and slap Lee Gon. It became that frustrating.

I absolutely loved Kim Go Eun's acting in the beginning drama, she does an great job playing both roles but the writer makes stupidly makes the female lead's character go from being an strong tough character in the beginning to becoming a weak damsel in destress once her romance with the male lead starts. The writer also fails to differentiate both characters and makes their personilities so similar that it gets so confusing to know which world they are in.

Lee Lim's character was also a bit of a mess too. We never found out what he was trying to achieve by bringing people from the parallel world and what is his grand plan was. By the end of it, it seemed he just wanted to live for eternity by getting both pieces of the Manpasikjeok but what does that have to do with bringing people from the parallel world and making them kill their counterpart when they have nothing to do with him aquiring the other half of the Manpasikjeok. They wasted so much screen time on bringing in so many characters that were so irrelevant to the plot and it just makes me angry. And the fact that he is the main villian of this drama but in ep 15 he literally lets Lee Gon reach into his pocket and take his half of the Manpasikjeok and puts up zero fight.

I've never asked for a drama to be perfect but just please make it make sense! But this was just an tragically failed attempt and over complicating the plot that it ends up not making sense that has left me wanting to rip my hair out at how stupid some of the script writing is. Overall it's not horrible but I wouldn't recommend it to anyone. One of my favourite aspect of this drama was Woo Do Hwan's portrayal of Eun Seop and Jo Yeong. He does an incredible job playing both character that it sometimes makes me forget that both characters are played by the same actor.