I Left All the Troublesome Matters to My Sister, Who Is Called Incompetent, and for Some Reason She Got Sick. Moreover, She Seems So Much More Competent

Native title: 面倒なことは全部無能と呼ばれている妹に任せてたら何故か病んでた。しかも俺なんかよりめちゃくちゃ有能そう