Good story, but then really missed a "time to rest" after winning the big battle.

To see the protagonist have the chance of all those powers and lose for "stupidity" is frustrating to the reader, I believe it would have been better if he had not shown or spent so much text to explain powers that he would not have. inThe second point I see is, the MC took a lot of powers. He will already reincarnate as Broly, who already has the characteristic of and legendary super saiyan and has picked up another 4 or 5 powers. Dragon Ball is a simpler anime universe, fights are fought by means of punches, kicks and bursts of energy, these skills of it are quite out of place.

And in case Shirou is a "third-rate wizard who only knows one spell" is a positive factor. Shirou is almost obsessed with projection magic, he has trained her and exclusively there his whole life which makes him almost if not a true master in his use.

That's where you're wrong. Shirou's UBW route, using Rin's mana, could create perfect copies of the weapons and shoot them even faster than the Gate of Babylon, making it the perfect counter.

And the question that stays on the air is, why? It doesn't make any sense All for One the biggest villain holds the most powerful peculiarity of MHA being afraid of a wealthy family. And it makes even less sense to MC's sister. Remember that the strongest figures in this world are around All might and All for One, it is absurd that she, being someone born normally in this world, being as powerful as the MC (which according to what was said to have, is already stronger than the previous two).

The guy just could have shown the badge from the start, but nooooo, he has to spend time, patience and even punch the cops who are simply doing their job.