Live a Stable Life in Kexue World

Toru Kuroyanagi, a native of this world, was hit by a big truck one day and couldn't unbutton the wall of the world. After being sent back to the consciousness of the world, he woke up. When he turned his head, he found that the elementary school student playing football on the lawn of the park next to him was the protagonist of the world. To this, Toru Kuroyanagi only felt that this world was absurd.