Nakata recalls the first time he truly relaxed in a sauna three years earlier when he copied the unique rituals of a mysterious patron.

At Mr. Coincidence's recommendation, Nakata visits a bathhouse in Suginami. After finishing bathing, he is overwhelmed with a sense of nostalgia.

Nakata discusses the art of fanning the sauna heat with his friends and recounts his encounter with a legendary expert, Elegant Watarai.

In a tent sauna in Hiratsuka, Nakata learns of a new way to experience his hobby by observing a particularly tough-looking customer.

After learning about a so-called sauna sanctuary in Shizuoka, Nakata travels there to experience the holy water of its cold bath for himself.

Mr. Coincidence shares his tale of a man known as the godfather of the sauna world, which inspires Nakata to visit the man's sauna in Nagoya.

A young woman searches for good saunas on the weekends. One day, she takes the train to Nagoya and finds a distinctive facility designed for women.

Nakata visits a hotel with a sauna at Mr. Handsome Steam's suggestion. As he indulges in the luxurious atmosphere, he has a coincidental encounter.

An office worker visits the sauna in search of a cure for his loneliness. However, he struggles to keep his negative thoughts in check.

Worried that he can no longer relax in saunas, Nakata travels to Kumamoto in search of the elusive Steam Z, hoping that he will be able to help.

As relaxation continues to elude him, Nakata considers giving up on saunas. Later, he finds what he is looking for in the unlikeliest of places.