Duan Qing is a ghost living in his room.
He has no job, no friends, and doesn't even have a name. "Duan Qing" is just a code name. His only area of activity was the dimly lit bedroom filled with clutter. He is a pure, isolated otaku.
He is like the Narcissus in mythology, whose only obsession is himself. But what he is obsessed with is not the reflection in the water, but himself. He would look at himself in the mirror and look at himself obsessively; he would hug himself and kiss his arms. His brain has been completely occupied by the idea of "loving yourself", to the point of obsession and self-brainwashing.
He hates outsiders so much that any knock on the door or text message alert makes him panic and angry. In his view, the outside world and other people are pollution and infringement of the time he spends alone with himself.
He wanted to do nothing but indulge in this morbid intimacy with himself.
This is not a story about growth or change. This is a story about a person who takes "loving himself" to the extreme, and finally completely isolates himself from the world, living only in the eternal embrace of himself.
Concept: Obsession in a cage