An ordinary student, due to an accident, obtains a system that allows him to freely travel between anime, manga worlds and reality. From then on, his life becomes interesting. This story features worlds and characters from various popular series including: Yu-Gi-Oh!, Highschool of the Dead, Sword Art Online, Absolute Duo, Angel Beats!, Freezing, Date A Live, High School DxD, Kamisama Kiss, Strike the Blood, and more.