You are reading Not in Vain manga, one of the most popular manga covering in Shounen, Ecchi, Historical, Romance, Comedy, Shounen ai, Drama, Fantasy genres, written by 长佩文学, 九川动漫 at MangaBuddy, a top manga site to offering for free. Not in Vain has 74 translated chapters and translations of other chapters are in progress. Lets enjoy. If you want to get the updates about latest chapters, lets create an account and add Not in Vain to your bookmark. Disabled General Lu Ji X Substitute Marriage Partner Mermaid Yu Xiaoman. My name is Yu Xiaoman, Yu comes with the Yujia village, the name of the place where you saved me; Xiaoman comes with the festival, the day you saved me seven years ago and the day we first met..... The story of Yu Xiaoman, a young mermaid who knows how to repay the kindness and gives his everything after a substitute marriage.