The grid drama has many layers so it was quite confusing while watching it. The elements like Timetravel, Teleporting are good. The drama is feels dragging and slow.
Thrilling part also feels missing. We can feel there are parts were the illogical and predictable. After watching the drama i thought they did not use much of Lee si young . The graphics are good.
The cast as done there part good. Seo kang joon done his role perfectly good. Kim ah joong and Kim Mu yeol done there parts good. Do not expect much from the music.
The drama is an average and slow suspense investigative thriller. One time watch and a time pass drama.