Douhua is the abbreviation of Wangdao composed of (U-Know U-Know Yunho [Jung Yunho] [ユンホ(ユノ)]) and (HERO Hero Zaijoong [Kim Jaejoong] [ジェジュン(ヒーロー)]) from TVXQ.
Sweet cake is Yun Zaifan, and here is a collection of Douhua essays (short stories) written by sweet cake, one name per article.