At first, I thought the game is about the hikikomori phenomenon, but it turns out otherwise.
As someone who is (unwillingly) stuck inside a small room every day, the banal horror implied by the line "X is home, so I can't leave the room." cuts very close.
Ultimately, I'm glad for the game's protagonist that his X is not a cruel monster disguised as a self-serving human.
The game's message is good to bear in mind, for poverty-induced neglect &/or social isolation is very real indeed, even if most people are blissfully oblivious to it.