Haru, a bookstore clerk, talks to Yukiko pretending to ask for directions. Haru has detected deep sorrow on Yukikoʼs face. Meanwhile, Haru has been spending days following Tsuyoshi discretely and checking his expressions. In the past, when Haru had lost her mother as a junior high school student, she met and talked separately to Yukiko and Tsuyoshi by chance who seemed to suffer from heartache. The action was brought by the remorse that Haru couldnʼt help her mother while knowing her sadness. Haru has kept watching Yukiko and Tsuyoshi now and then. Occasions that Tsuyoshi, who has been aware of Haruʼs behavior, appears at her workplace and Haru once again talks to Yukiko unfold new dimensions in each relationship. Haru confronts with her own feeling toward her mother and grief during the days passing with the two. 源自：

光をテーマにした短歌コンテストで1200首の中から選ばれた4首の短歌を原作に、この世界を生きるための支えとなる光のありかを、現代に生きる4人の主人公の姿とともに描きだす。都内近郊に住む詩織、雪子、今日子、幸子は、それぞれ誰かを思う気持ちを抱えながら、それを伝えられずに日々の生活を続けている。旅に出てしまう同僚、他界した父親、閉店が近いアルバイト先の仲間、長い年月行方知れずの夫のことを思いながら、彼女たちは次の一歩を踏みだしていく。そんな彼女たちをときに静かに、やさしくつつむ光がある。『ひとつの歌』につづく、杉田協士監督による長編第2作。 Based on four tanka poems, selected from 1,200 submissions to a contest with the theme of light, this film illustrates the meaning of light in the lives of four female protagonists. Shiori, Yukiko, Kyoko and Sachiko continue to live each day with untold feelings inside. Unable to forget a colleague on a trip, a father who is ill, a friend who works at a store that is about to close, and a long-lost husband, each woman takes a step forward. There is a light that sometimes embraces them, calmly and gently. This work is the second feature directed by Kyoshi Sugita, following A Song I Remember.

Sachi quits her job at a museum, starts working part-time at a café, and moves into an apartment recommended by a regular customer. Although she has started a new life, Sachi is still haunted by the memory of her partner whom she will never see again.