Boku no Kawaii Musume wa Futago no Kenja ~Tokugi ga Debuff no Teihen Kuro Mashirube-shi, Sodateta Futago no Musume ga S-rank no Dai Kenja ni Natte Shimau~

Elcan, a dark magician, is fired from his party due to his lack of talent with offensive magic. As he wandered the streets he came across twins, who were abandoned by their parents. "I couldn't be a good dark magician, but I want to make their lives better!" He decided to retire from being an adventurer and raise these two girls as his own. And so, he raised his daughters, Corona and Selena. Teaching them black magic and enrolling them in a prestigious magician's academy. After learning more about magic, the girls return to see their father with some important news... They are S-rank Sages?! And they want to form a party with him?!

High-rank parties chasing out their own party members because of their low stats has recently become a common trend. A young man named Aizen, feeling dissatisfied about the current status supremacism, has decided to gather the outcasts who were expelled due their low stats, and establish his own guild together with them. "Are you kicking them out of your party? I'm going to recruit them then!" A person's abilities isn't limited to their stats alone. The "weak" will bloom and become "strong" using of their latent abilities, their "hidden skill"!