Science reborn

In Japan a mysterious green light hit the entire of Japan and one by one people in it turn to stone but they still have active brain but they can't move or speak for over 300 years they have being stuck in stone grassess full out the animals weren't infected by the green light so they grew up bigger and involved even dog becomes as big as a lion lion becomes as big as a Buffalo even cat becomes tiger after those many years but one day a boy which is our protagonist wakes up he super smart born with natural intelligence and his goal rebuild civilization