Even if the World Ends Tomorrow (あした世界が終わるとしても, Ashita Sekai ga Owaru Toshitem) is a Japanese 3DCG theatrical film produced by Crafter Studios that premiered in Japan on January 25, 2019. The film was an altered adaptation of the Japanese CG web animation series entitled The Relative Worlds (ソウタイセカイ, Sōtai Sekai), which was divided into two parts; the first part released on Hulu Japan on April 28, 2017, and the second part on May 5, 2017.
Ever since his mother died when he was young, Shin has shut his heart out with only his childhood friend Kotori has been looking after him ever since. Now that they are high school senior, and it seems like they can finally move forward. Until, another Shin from another Japan has suddenly appeared in front of them.