The expectations came very high for this drama, but honestly speaking, the impact is not as powerful as it was designed to be. A school bully revenge arc storyline isn't something new as we've seen plenty of them in kdrama, but to put it into this kind of lifelong grand scheme, it is still a decently respectable plot, and it was mostly lifted by the great acting performance from the actors. The details it has are quite enormous in scale though some of it may happen like magic science but that's forgivable, it's just that it gets extremely soapy towards the end. Definitely have to wait for part 2 to come as things seem pretty exciting at the moment and the game has just begun.