Three classmates, including Mari, a full-time housewife, Sayo, who is in divorce mediation with her husband, and Satoe, a career woman, gather when their high school classmate Hiromi die lonely in an apartment owned her. The will left by Hiromi was accompanied by the names of three people who were not so close to each other for some reason, and included a request for the remaining apartment, Hakurensou, and the mysterious inhabitants afterwards. It is a story about three women born in 1963 who live in a "difficult reality" in an unchanging relationship and changing circumstances.

(Source: Shogakukan, translated)