Review Detail of Tartarus in The God Of The 7 Elements

I dont know why this FF got high score. Mc is reincarnated person but so stupid. Being ninja without the basic of ninja, not knowing of shunsin,clone, and even worst,really bad at hiding. The only power of mc is to control element,in which he only use fire for decades because he dont want to try the other element. And the most important, the grammar or the sentence are killing so many of reader's braincell because of the typo and wrong grammar. English is not my main language and i can tolerate if its still readable. But this is killing my brain cell more than ever.