Select from a variety of modern-day rooms to turn an excavation beneath 2,000 feet of bedrock into the very picture of Vault Life.
We designed the game situations as if it is in a mixture world, that is the both of the situations in the real high school daily life in Japan and the situations which is shown in Japanese animations that sometimes contain very fantasistic elements.
As for the fun gameplay, this is no longer the lightest way you think it is.