[english is not my main language so i apologize for any mistakes]
I started watching this on friday night and when i realized it was already sunday. I lost an entire weekend watching this because this show it's SUCH a mess that makes all the experience so damn funny.

Let me explain.
So, if you already read the plot summary you know that we have a misterious woman and a handsome guy who end up accidentally meeting each other a zillion of times (ok it's like 5 times but in a city with 26 MILLION people) and start to get close to each other bla bla bla.
And when you read this, you expect that they'll meet a lot of times, fall in love, breakup because of a secret, makeup later, kiss, get married, the end, yay! You're not prepared to what you're going to live in the next 30 episodes.

I MEAN OF ALL THE TROPES. OF ALL THE POSSIBILITIES, WHO WOULD'VE THOUGHT!

I know how c-dramas work. Seriously.
In this one you have a female protagonist that is so much not-like-the-other-girls she's bold (but in a nice way) and she's carismatic and she's nice and even though she's the CEO of one of the most richest companies in the country she stills works as an assistant and also works as a sub-chef in a restaurant! And the male protagonist is so-much-like-the-other-cdrama-protagonists! He's handsome, and he's rich and he has tons of women who love him and every breath he takes became news in some internet forum.
And you watch they meet. You watch they interact. And you watch those inexplicable events happening (you know, those type of scenes that are so funny because it doesn't make any sense and you watch and say "woah this is a true c-drama") and you expect that it will flow the normal way. All the 10 characters know each other somehow; they're all connected. You already know who is the lead couple. You just need to find out what the female protagonist is hiding.

Everything it's fine you just have to wait.
And then you find out she has superpowers! Like. Really. She's like three members of EXO combined.
If you didn't love the plot by the episode 15, after this episode you just start loving this show so much because WHY?? IS SHE AN ALIEN? WHAT'S GOING TO HAPPEN TO HER? WILL SHE BE KIDNAPPED? ARE THEY GOING TO TRY TO USER HER POWERS TO AND EVIL SORT OF THING? WHAT WILL HAPPEN WHEN THE VILLAIN FOUNDS OUT?

In the end you'll be disappointed, of course. This is a c-drama, don't forget.
But the fact that she has superpowers, the way that they make the fact that she has superpowers something normal like Boku no Hero Academy and only mention her powers in three to six episodes and the way that in the end you just so shocked of everything you saw and everything you heard make this drama so worth it.

I really wasn't expecting this.
Also wasn't expecting the male protagonist's brother having such a sad arc. I didn't watch this drama because of him, I watched to understand how a CEO of a company have time to have more two jobs (and the answer is easy, she has superpowers) but it's really sad that he's the character that suffer (A LOT) for the male protagonist to have a serious side.