Review Detail of Desertstorm in Dxd devil gamer

Well I read upto chapter 9 and what can I say, the first few chapters were good but then the chapters just looked a little copied and pasted. Every chapter was the mc got more familiar with his magic and got 500 mana and then a status sheet which was like 70% of the chapter which continues until chapter 7. The whole system is backwards to the usual gamer system style. Which he can only level up using his points which he only gets 0.5 a day. Also all the working out and practicing/reading does nothing to contribute to his stats which if you was doing martial arts, practicing sword skills and magic along with reading day in day out you'd expect an increase in stamina, strength and intelligence at the very least( or is this just me?). The author doesn't explain the system at all, he doesn't mention that the mc can only gain levels by spending his saved points and doesnt explain how many points are needed per between levels? does he get exp? is there a store function? No information in the chapters I read regarding this which for me makes the story boring and uninformative. (Again my opinion)