A woman who likes to turn off the lights when having sex is dissatisfied with her boyfriend who has sex with the lights on. While cleaning up after closing time with a male colleague who works at a cafe, the store suddenly suffers a power outage. In the pitch black, they talk, illuminating each other's faces with the light from their smartphones and simple lights, and the atmosphere becomes good... The woman is shy in the light, and when the lights are turned off and it becomes dark, she starts to get excited because she can't see each other's faces...