A girl who was once called a genius was sent to a mysterious mental hospital by her own psychiatrist. There she met a handsome old man with a bald head but a big beard, a lolita in red with incredible martial arts, a beautiful sister who was addicted to luxury goods but had excellent cooking skills, and two cats that appeared on the roof inexplicably. After adapting to the new life and collecting intelligence, they gradually learned that everyone here had their own stories. Three months later, new people appeared. The five people finally left the "paradise" created by the dean and returned to society. People should still live in society. There is despair everywhere here, but as long as there is a little bit of sweetness, they are willing to stay.
Concept: Man is the sum of all social relations (Marx)
The male protagonist also likes Annie.