Tell me author, what's the point of especially writing a protagonist who goes through a whole life in another world, fighting and killing monsters, demons, probably even other humans..
BUT, when he get's back to earth, he act's just like a person of his age, with the same naivety, innocence and stupidity than his current body is.. He acts like any other virgin-kun highschooler japanese boy when he sees a girl who's almost naked infront of him..WHY bother with the isekai backstory, if the only change is his powers?
Tell me, how or where does it show that MC is a battle-hardened veteran fighter and a killer? Where does it show that he has seen some gruelsome shit, and death? Exactly. It doesn't. So why bother with the backstory? Just give this kid powers by some random chance, if you're not gonna commit to writing an actual human being.
"B-B-B-UT THE PROMISE TO THE POLICE OJII-SAN, SURELY I CAN'T FIGHT???"
Oh eat shit author. How much of a joke this protagonist is to you even??
I dislike this story already so much, and we have barely got the end of second chapter.
WHY,WHY they always have to ruin the story for us, with these subpar protagonists. They disappoint me 4 out of 5 times, not even joking.
Japanese authors just can't write good, manly, relatable protagonist men. (Well most of them)