Summary:

Instead of helping a child who was going to be run over by a truck while leaving a school one day, he loses his life. When the zero that should have died wakes up, it is a vast library. To be given a mysterious skill called a person loved by a spirit to a librarian-style brother who is God, to be incarnated in the fantasy world .... In the forest of another world forcefully sent from God, pretty little dolls appeared in front of zero where the situation has not been well grasped yet.