World, Before You 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.

While struggling to make friends after his parents’ divorce, Koyomi Takasaki meets Kazune Takigawa, but apparently, they already have. Kazune reveals that she’s from World Line 85, an alternate universe in which she and Koyomi are lovers. But in a reality where moving between dimensions is natural, could Koyomi be the one from another world?

It is 2046 when a mysterious alien force begins their annihilation of the human race. Leaving behind the one person she loves, Mikako joins the interstellar battle as a pilot. And so - while Mikako risks her life to save mankind - Noboru waits. At first days, then months, then years for each new message that will let him know whether Mikako is still alive. And, while she barely grows older in the timelessness of space, Noboru ages. The two lovers, worlds apart, desperately strive to remain connected as the gap between them widens at a frightening pace.

Koyomi Hidaka and Shiori Sato meet at his father’s research center and begin to fall in love, but so do their parents, who eventually marry. To avoid becoming stepsiblings, they decide to run away to a parallel universe. Traveling between dimensions is common in their world, but not without repercussions. Does a universe exist for the young couple, and what will it cost them to find it?