Nagi, who started working at the late-night diner "Luna" in Tokyo's 2-chome, meets Hinako, a lesbian living through the night in solitude. Inside the shop enveloped by the sound of rain, they share their first kiss. Hinako is afraid of love, but Nagi conveys her genuine love, and the distance between them rapidly closes. In a city where all kinds of people gather, tonight again a supremely pure, erotic and emotional lesbian love story unfolds. After graduating from junior college, Nagi moved to Tokyo and started working at "Luna" to find her place, as if convincing herself.