I'm going to start off by saying that the publisher of Id went bankrupt. That means that Id was cancelled over 4 years ago and will most likely never continue. It's safe to say that Id "ends" at chapter 178 which feels sort of disappointing because we're left in the middle of an ongoing conflict where the main antagonists or "masterminds" aren't even confronted yet.
Ignoring the manhwa's cancellation, the story was really nice for me up till the "end." It had an overpowered main character who could still realize he needed to learn a thing or two, people who were constantly dumbfounded by his power, and a lot of fighting.
The problem with the fighting part is it was so badly drawn. You could hardly tell what's going on because the artist doesn't know how to depict fighting in a still frame. Imagine being in a dark room when it's daylight outside, trying to read a book using tiny slits of light that are barely making its way through a thick curtain WHILE you're on the other side of the room. It gets better, but barely.
There were a few characters I liked and a lot that I questioned why they were even being introduced since more than two-thirds of the people Id befriends end up being sidelined or used as a backdrop.
Still, I enjoyed this manhwa even with it being axed.