A girl named Glum Depriss is searching for euphoria because of her grandfather's last wish. He just said to her that it has a yin that is a part of yinyang and the another has the yang while glum and the another one has the whole yingyang. After that, everyday she thinks about it and can't focus on her studies. How can she search for it, if she didn't even know who or what is it? Euphoria? Name of a thing? Place? Event? Animal? Or a person? She is a lonely, independent, wise, curious about everything, grandpa's girl and abandoned. Even though she almost owns everything, she is not happy.