Synopsis wrote:When timid eleventh-grader and math genius Kenji Koiso (Ryunosuke Kamiki) is asked by older student and secret crush Natsuki (Nanami Sakuraba) to come with her to her family’s Nagano home for a summer job, he agrees without hesitation. Natsuki’s family, the Jinnouchi clan, dates back to the Muromachi era (1336 to 1573), and they’ve all come together to celebrate the 90th birthday of the spunky matriarch of the family, Sakae. That’s when Kenji discovers his “summer job” is to pretend to be Natsuki’s fiance and dance with her at the birthday celebration. As Kenji attempts to keep up with Natsuki’s act around her family, he receives a strange math problem on his cell phone which, being a math genius, he can’t resist solving. As it turns out, the solution to the mysterious equation causes a bizarre parallel world to collide with Earth, and it’s up to Kenji and his new fake family to put reality back in order.
This is the best anime movie I've seen in a long time. I was literally on the edge of my seat for the last thirty minutes of the film. This one might even beat Tokikake for me. Coming from the same director, I expected something similar to it. I did not expect this. This movie just blew me away in every way it could have. The only way it could have been better is if the copy I obtained were in better quality. It... was not the best, to say the least. Regardless, it was amazing.