Asai Takuma is a fourth year college student who is having a hard time finding a job and is desperate for the sake of his future with girlfriend, Shintani Risa. One day, he was asked out by his childhood friends Eiichi and Mamiko to dig out a time capsule that was buried 10 years ago. The time capsule contains a letter from Takuma himself in the past. However, Takuma also receives a letter from himself 10 years later with a "shocking future". He decides to collaborate with the future him to change his life.
Seven families are aboard a bus towards a field camp for their vacation. At this camp, it becomes clear that this is not a common trip. The parents are of the kind that abused their children or were visited by children´s services, and at the camp they are offered to sell their children for a large sum of money, because there were customers that needed healthy internal organs.
