Craftar studio and Hulu Japan are collaborating on a new CG anime project. The plot takes place in Japan during the year 2020, with Shin Hazama as the main protagonist. Suddenly, a parallel version of himself, who led a different life in an alternate Japan, emerges. A rift in his mundane existence, previously thought unchangeable, has now appeared. As the world alters entirely, young men and women must decide what to believe and do. Consequently, the struggle against a new world and its version of themselves commences.