Izumi Fujimoto has always been a calm and a lonesome guy, smart but not someone who really cares about people, relationships and all that hassle. Just wants to live his life while being a high achiever.

That all changes on one fateful day at a school festival when he's just spending time on his own away from all the commotion and he crosses path with Natsumi Hoshino, a girl whose reality is the complete opposite of his.

While away from all the commotion, they come across something they should've never found, a puzzling device that disrupts their reality, hurling them into the future.

At first, this future seems like a dream—robots, artificial intelligence, world peace and the world thriving. But as Izumi and Natsumi delve deeper into this utopian world, they begin to notice cracks in its perfect facade.

Is this future truly the paradise it appears to be, or is something far more unsettling hidden beneath the surface?