Misaki no Manatsu runs several cafes in Kanagawa Prefecture. Thanks to her husband, who operates an IT company, she was able to become independent and open her own businesses at a young age. Financially secure, she lives a lifestyle that ordinary people envy, yet she harbors deep dissatisfaction during her nights. Her husband often falls asleep even while they're being intimate, sometimes ending things after just foreplay. Even when they do have intercourse, it's over in mere seconds. It's clear that premature ejaculation has left her suffering from chronic sexual frustration.