Yes, I'm not a mangaka. I never said I was a mangaka, but I know a lot about basic story telling and I do read stories/interviews about real mangakas. And one thing I learn about grabbing readers attention, at least in today's shonen, be very flashy. That isn't a bad thing, I get it, but how long do you think he can keep that flash lit? So far he's doing a good job but he have to got back and work on that story. Sadly, he told the whole story in 3 chapters.
Main character living in a super power world with no powers, a nobody, but wants to prove he's can be a hero...Cool. That's sounds like a fun story, maybe he got some other talents, maybe he got a different type of power, maybe he got to think outside the box to beat the bad guys--No wait, he got his powers...Cool...Now what? Now he's a hero and...Yeah. Cool. He's a hero. Now he can fight and do hero things...The End.
Even though the whole point of the series was about him not having any powers, but who cares.
Baku No Hero had a good idea but kill it, for me at least, by giving main character his powers from the very start.
Yes, the series is very popular, that's a fact, but you can't tell me Baku No Hero is a great story.
I love Dragon Ball, I love Baki, but those are not great stories. FUN, but not great.