Fifteen years after graduating, two former classmates cross paths again. One has become a lawyer, the other a host at a nightclub. Their lives have taken starkly different trajectories, yet on a single night around one in the morning, they share a brief, intense reunion that reopens old connections and unresolved tensions. This chance encounter is the heart of the title story, which gives the collection its name.

The work is a collection of eleven short manga by Matsumoto Suisei, each a self-contained narrative. The title story anchors a set of tales that explore a range of relationships, secrets, and fleeting moments, often set against glittering urban backdrops. Other stories in the volume include pieces previously published in the creator’s earlier collections, such as Tsubame no Hasami and Kami ni Chikatte Itsuwari desu. The anthology as a whole presents a mosaic of human interactions—some tender, some tense, some tinged with irony—united by Suisei’s distinctive, polished art style and a focus on the charged, transient nature of personal reconnections. The setting shifts across contemporary Japanese cityscapes, with each story introducing its own cast: classmates, lovers, strangers, and acquaintances, whose narratives unfold over short but pivotal spans of time.