Eitaro, who grew up in the city, ended up spending his summer vacation in the countryside at his uncle's place to avoid crowds, as suggested by his worried parents. The summer in the rural basin surrounded by mountains and rice fields was incredibly hot. It takes two hours by car to reach a convenience store. The signal is unstable, so he can't watch videos, and the nearest neighbor's house is about a 30-minute walk away. There's no stimulation at all; on his second day here, he's already bored… except for one thing: the fact that the young wife of the nearest neighbor is a sex monster.
