As 7 young girls (which even the author didnt know how old are they) and 7 young boys stays under a same enourmous house , they live happily as if they were in heaven ~ but everything had changed when they went to a mysterious place , facing lots of obstacles , pain , and heartbreaking moments . Will everything starts to come back into normal ? Will they starts a new life ? Or will they suffers until the end of their life ?