What's the name of the cartoon in which my sister sends my brother to another world?

Dance Academy without Game and Life is the first light novel created by writer and illustrator _ Gong _, originally as a comic book. And not for _ palace _ painting, but for providing-that is, as the original author. At the request of the original author, "although I like fantasy stories very much, I hate fighting!" " _ palace _ Initially conceived "Then, simply set a fantasy world of' impossible' fighting!" Due to a sudden cancer attack, I stopped working as a cartoonist and started working as a light novelist for the sake of health.