GET /topic/%23%ED%8A%B8%EC%B9%9C%EC%86%8C%EA%B0%80_%EC%84%B1%EA%B3%B5%ED%95%A0_%EB%A6%AC_%EC%97%86%EC%9C%BC%EB%8B%88_%EC%95%84%EB%AC%B4_%EC%9D%B4%EB%AF%B8%EC%A7%80%EB%82%98_%EC%98%AC%EB%A0%A4%EB%B3%B4%EC%9E%90