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.

Based on the song by This is LAST, the drama is about the shaky emotions that are triggered by his girlfriend's graphic affair, which the male protagonist witnesses through the app.

Hana, a high school girl, has been grown up in a foster home because of a crime her mother is said to have committed. As the oldest sister in the home, Hana takes care of a newly sheltered girl abused by her mother.

The Tama River, where the water flows along the border between Tokyo and Kanagawa, pours into Tokyo Bay and the large sky spreads out. People who enjoy sports, lovers who are close to each other, students who practice singing, by the riverside, which is rich in nature, people who ride bicycles come and go as they please. Spring of 2020 corona disaster of people who spend their days along such a river.

In consequence of his professional mistakes and declining career, Shuji and his family, the Sasaya’s, are forced to leave the wealthy suburb of Tokyo. The move is slow, long and heartbreaking, and the two Sasaya children, an old teenager and a young adult, unwittingly turn the grieving process into an exuberant and unpredictable farewell party!

Kazuto has a lifelong dream of becoming an actor, but has been suffering from a special medical condition where he faints and collapses when he gets nervous. One day, he encounters his brother, Hiroki, who who he hasn’t seen for years. He invites Kazuto to a talent agency called 'Special Actors'.

Ichiko works as a private nurse for a family she almost became a part of. While Ichiko cares for the grandmother, she is also a confidant to Motoko, the eldest sister. But one day, Motoko’s younger sister disappears. And the media soon reveal the kidnapper to be Ichiko’s own nephew.

Kotoko, who has just started high school, feels bored on a daily basis. Seated behind her in class is Sachi Seto, who is struggling with illness. Though she has not yet met anyone, they all call her Sacchan. One day, a mysterious girl appears before Kotoko, changing her boring existence. Who is she?