The story of "FALL" takes place in a fictional world called "Vision Land". The world of "Vision Land" was once very similar to our real world until the discovery of Ether energy led to the outbreak of war. After the war, a political pattern that lasted for a hundred years emerged. It seems that there is a mysterious hand keeping the world unchanged, forcibly stopping time.
Lane, a carefree girl living in the Mangrove City of Celeste, went on a trip with her friends as usual during the summer vacation. However, she met a black-clad man who claimed to be looking for the Omega seal and a woman called "Cardinal". In the pursuit of the truth, what kind of sparks will be ignited between them, and what will Lane do? Everything is up to you to decide. . .