[No system + no cheats + soft science fiction + fantasy + magic]
Three hundred years ago, the Black Snake God died.
The three major god countries survived, and the Godless Free Alliance was established.
Three hundred years later, in order to achieve peace between the two countries, the Free Alliance and the Ancient Roman Empire sent students to each other for exchanges.
They were attacked on the way, the resurrection of the black snake god, the disappearance of the goddess, the civil strife in the ancient Roman Empire, and no news from the Free Alliance.
How can we inherit this new world that is difficult to come?
