Someday is a traditional Yume Nikki fangame. Itsuki Inoue is trapped in his apartment by a terrible typhoon. He is unable to contact anyone. The only thing he can do, is sleep. So, in the meantime, he decides to explore his dreams in order to gather his thoughts. What could be inside his mind that doesn't feel right? The doll hanging out of the window stares at the gray sky. Will this typhoon ever stop?