Depressed and in debt, Santoshi tells his young daughter that he is going to find an infamous serial killer and collect a reward. However, when Santoshi disappears without a trace, she starts to fear the worst and begins searching for him.

Hana's boyfriend Shoichiro suddenly leaves her, and now she is in a relationship with Akatsuki, Shoichiro's best friend. Hana keeps waiting for Shoichiro while feeling the sea breeze and the back of the man who left her.

A person in charge of “Belonging” appears before people whose lives have ended and tells them, “Do you have any regrets in this world? If you have, you can become an object and return there.” A wife decides to become her husband’s favorite mug, a boy becomes his favorite blue jungle gym, a grandmother becomes the camera that she gave to her grandson, and a mother becomes rosin that is used in a baseball game so that she can watch her son pitch in the game. At the very end of their lives, they spend time with their loved ones as objects.

It feels as though someone is peeking through the countless windows. A young couple lives in an apartment building under construction, and a female diorama artist moves in. She is the husband's former lover, and he is drawn to her room, rekindling their love. The wife, waiting at home, senses that the couple's gazes are gradually drifting apart, but continues to pretend not to notice. The building under construction emits construction noises and subtle vibrations from outside, shaking the relationships of the residents. The elderly man who manages the building watches all of this from the surveillance monitor in his office. One day, as if on cue, the entire building experiences a power outage. The wife sees the only light spilling out from the window of the manager's office in the pitch-black building. She steps into the manager's office and confronts reality. The city, people, and stars appear small in the distance. What is happening over there?