The previous page is sending you to https://www.ac-illust.com/main/search_result.php?word=%E9%83%A8%E5%B1%8B&search_word=%E6%9A%97%E3%81%84%E9%83%A8%E5%B1%8B&page=0.

 If you do not want to visit that page, you can return to the previous page.