Dreams can easily turn into nightmares.  Rosemary lived an ordinary, boring life until one day, a talking mannequin offered her a chance to go to another world, if she could find and take back an artifact he needed. Along the way, she meets her best friend, starts a rebel group, and learns the dark truth behind the strange request and the origin of this dimension.  A story about how two isekai-d teenagers take over the world. Much bloodshed ensues.