[Machine Translation] Ryota" is an eighth grader who has been entrusted with raising his two-year-old brother "Ai" in place of his late mother. He doesn't have time to hang out with his friends, and is constantly pushed around by his younger brother who doesn't listen to him. If it weren't for his brother.... When such a thought crosses Ryota's mind, his "will to kill" finally peeks out... On the night he crosses the line, will it be Ryota who will be broken, or...?