After the otaku Yueyang arrived, he was surprised to find that he had changed into another identity, the third young master of the Yue family, a drowned ghost who committed suicide after his engagement was broken off by a beauty. It turns out that the third young master of the Yue family is a bad guy, and is recognized as the most useless person among the four major families. It took fifteen years but he was still unable to contract the Summoning Book...