A girl who lives on the moon. A young man who choked on a star. A high school girl who steps into the night through a gap in her daily life. These are a few of the characters found in the five one-shot stories that make up this anthology, each one centered on the strange and eerie events that unfold during the hours of darkness. The collection opens with Replay, followed by Kuma-san to Issho (Together with Mr. Bear), R-15 Horror, Ano Mori ni Shizumu Tsuki (The Moon Sinking into That Forest), and closes with Yokubou Ressha (Desire Train). Every tale stands alone, yet all share a common thread of supernatural encounters, psychological tension, and a haunting atmosphere that lingers long after the final page. The settings shift from celestial realms to the familiar corners of everyday life, but the night itself remains the constant backdrop—a liminal space where reality warps and the hidden fears of the human heart surface. The narratives explore themes of obsession, loneliness, desire, and the thin boundary between the ordinary and the uncanny, offering a chilling glimpse into the sleepless hours that lie between dusk and dawn.