This series stinks, nuff said. The first 3/4 of the first volume was very slow, then they finally pick up the plot a bit in the final 1/4 with a surprise twist and then they end the volume without delving any further into the new plot twist.
The second volume picks up with some almost completely unrelated characters & an unrelated plot. About 1/4 of the way in, it finally gets back to the main character & touches on one of the original plot points, but never does really progress the plot at all. In addition, the plot twist I mentioned earlier is never mentioned again in the second volume.
All in all, this manhwa has got to be the biggest waste of time I have ever encountered. My rec for this series is to go read the ingredients on a cereal box, they'd be more entertaining than this bird cage liner.