After finally moving in together, Katsuki realizes that sharing an apartment with Y/N feels far more intimate than he expected. Suddenly surrounded by her presence in every corner of his home, he becomes awkwardly nervous over mundane things like shared routines, pajamas, and sleeping beside her in a space that now belongs to both of them. As the first night settles in, Katsuki is forced to confront just how badly he wants this quiet, permanent life with her.