Actions Daibanchou Big Bang Age takes the user to an alternate world. A giant funnel formed in the middle of Japan, which quickly filled with water. Because of this anomaly, the landscape and terrain of the country changed. In addition, the state is completely isolated from the outside world. But the main trouble came later. Otherworldly crystals began to appear everywhere. They inexplicably began to endow people with dark abilities and powers. Moreover, mainly young people are exposed to radiation. They began to call themselves Special Students. They did not bring anything good to the world. Chaos reigned everywhere, and fear of young men with inhuman abilities. At the same time, they constantly use their powers to commit dark deeds.

The user in Daibanchou Big Bang Age joins the Student Union organization. It was founded by a young man who wanted to put an end to the confusion and injustice in the country. People with supernatural skills and qualities are also enrolled here. Their main task is to resist the forces of evil. In this case, you will have to engage in fierce battles with a lot of opponents. There will be military conspirators, bloodthirsty vampires, servants of the Cult of Flame and others. The action is accompanied by battle scenes, where each hero uses their abilities. At the same time, you should act as a close-knit group to win. In this case, the player's decisions determine the branch of the storyline, the end of the entire narrative.