One of all Super Sentai: Fem MHA (harem) X male Super Sentai.

In a world that where people have power, it's called Quirks.

But they are only females have quirks and males are not have quirks, that what they call quirkless.

Then they have heroes and villains, that they have law of heroes but they only females can be heroes and males can't be heroes because they are not have quirks. The villains want to kill and destroy the heroes and some male because they like to make fun to kill and beating them for they are quirkless. The some female look at the male as they are breeders, weak and they don't care about them.

But...

There is a boy was born with quirkless and his mom have a quirk but she don't care about he is quirkless and she will give him all love and be mother to her son. She call him a name is Y/n.

When his dad died by hero and villain battle and y/n is all alone with his mother and his aunts (mother have sisters) they are only his family.

When he is first in school and he was bullied by females in school and female teachers don't care about he was bullied.

Later when he become 6 years old then he go back to his home and he saw his mom have been held hostage by strange creatures (Super Sentai enemies) and he starts to run and try to save his mom and enemies about to kill him but the first of Super Sentai known as red Gorenger came and say to him "Y/n! You are have been chosen for the all power of Super Sentai, use them to save and protect your mother and people from the evil" he give to y/n of the power of Super Sentai and he use to save his mom and people.

The people were in shock and surprised by see this male have power and he did to save the people from the bad creatures.

And now he will be become the first great male hero in the world.

(This story will have "My Hero Academia" series and movies too)