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 (Associated Names)

There is a girl in my house called Incompetent. She is the girl who suddenly came to live in our house as soon as I turned eight years old. Father suddenly said, “From today on, she’s your younger sister. Be careful in public. At the time I didn’t understand what he meant by “just a…