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.