Review Detail of GJCaesar in Shock! The Spell Is In English!

Now I'm not normally one to write reviews but I really enjoyed the start of this story and then it lost me around chpt 160. FYI spoilers included. The story starts great and I like how it explores the idea of runes and how they can be used, then showing the advantage the system gives him as it seems specific to that use. However all of a sudden it seems like the author says f*** it and changes the story completely. Now don't get me wrong I don't dislike beast tamer stories and I can see how it would work in the world the author has built, but it's such a sudden shift and with how important the author makes Divine Beast Masters out to be, how can there be no mention whatsoever in the story until the MC decides to be one. Then on top of that the system changes completely and don't get me started on there being next to no focus on runes and the personal development we started with. To top it off we go from a medieval type world with carriages and horses to magical guns and vans and talk of the MC being so OP with his divine beast you "can't even see his tail lights" he is so good. If the story focused on one of these aspects then I can say without a doubt it would have me hooked but over all I just found it a bit confusing.