Strong Female Leads That Can Actually Fight

The title says it all. After beating the owner of the tower, MC became the strongest human in the world. Then she transmigrated into a duke's daughter and her strength and skills transferred, although they were adjusted a bit to fit the new world's limitations. But she's still the strongest human in this world.

MC comes form a family of knights and from the looks of it, she's the strongest in her family and even in her order. She's quite the tomboy and a bit dense.

Concubine of the emperor lost her magic when she gave birth to her son. She lost her position when she lost her magic. In order to protect her son, she became ruthless and did everything to put her son on the throne against his will, so he offed himself. Then she went back in time to raise her son properly this time. Even without magic, MC gained power in a different way and will fight with all her might to protect her bio son and her adoptive son.