@MiiaBestWaifu - touya's internal monologue tends to be the best part in situations, which both the anime and manga leave out for the most part. His op'ness never really goes away and he tends to deal with all situations with no real effort, but as the world expands and the overall story shift gears (it changes pretty frequently) its more then enough to keep you invested. Also the addition of side stories that show his progress with his companions and friends are nice additions to break up the main story.
Right now the officially translated LN just took over the fan translated WN (which is now dead due to the LN catching up). 14 volumes and counting, all i can say is have fun, cause i sure as hell did and still am. The author puts a lot into his world building and overall relationships with each character.