Arata naru Sekai: World's/Start/Load/End

Four high school girls in uniforms walk silently on the barren earth. These girls are time travelers who had been sent 6000 years into the future, from their present in which the same day is endlessly repeated, in order to evade human extinction. They studied time travel in school, were examined by the aptitude test, and were sent to the future as told. What should they do now? They had no idea. The only thing they could take with them from the present was a light, toy-like cellphone. Of course, it receives no signal here. As the girls are walking, they see strange birds flying in the sky, and a discolored river in the distance. Then, one girl finds an abandoned house, and recognizes the name inscribed on the front gates. Arata-naru Sekai is a mixed-media project of Iruma Hitoma. He is not only writing the novel version, but also creating the story for the manga version, scripting the anime version, and penning the lyrics for the music.The story follows a time researcher and a group of children in a depopulated world that finds itself stuck in time. In order to save humanity, some of the characters are chosen to travel to the future (depicted in the anime), and others to the past (depicted in the manga), while those who are deemed unsuitable for the technology stay in the present (depicted in the novel)