Tsubasa, who moved into an apartment with her husband and son, found herself with a lot of free time. Her husband, who was much older, no longer made her heart flutter, and her son was often out, leaving her feeling restless. One day, unable to bear seeing the neighbor constantly leaving trash in the hallway, Tsubasa rang his doorbell. Invited inside for a chat, Tsubasa felt a strange sensation as she was enveloped by the mess and stench of the man's room. A surge of emotions welled up within her...