Kei Sakai, a high school boy, had a problem. One thing led to another, and he was deeply uninterested in everything and had no sexual desire. Then one day, he learns of a mysterious, beautiful girl named Yami, who is the talk of the town on SNS, from a fellow part-timer. Yami is an unidentified internet idol who uploads naughty videos and pictures of herself in outrageous outfits and has a huge following among men.