A competitor shows her nails during the Tokyo Nail Expo 2009 at Tokyo Big Sight on November 30, 2009 in Tokyo, Japan. (Photo by Junko Kimura/Getty Images)

Senji Nakajima sleeps with his Love Doll “Saori” at Love Hotel on June 4, 2016 in Nagano, Japan. Senji Nakajima, 61 years old, lives with his life-size “love doll” named “Saori” in his apartment in Tokyo, Japan. Nakajima, married with two children, who lives away from home for work, first started his life with Saori six years ago. (Photo by Taro Karibe/Getty Images)

Shooting star by Tony Wu, US/Japan. Winner, underwater. The electrifying reproductive dance of a giant sea star. As the surrounding water filled with sperm and eggs from spawning sea stars, Wu faced several challenges. Stuck in a small, enclosed bay with only a macro lens for photographing small subjects, he backed up to squeeze the undulating sea star into his field of view. The dancing posture of spawning sea stars rising and swaying may help release eggs and sperm, or may help sweep the eggs and sperm into the currents where they fertilise together in the water. Kinko Bay, Japan. (Photo by Tony Wu/Wildlife Photographer of the Year)

Japanese sеx doll exhibition attracts hundreds of mannequin-fetishists to celebrate 40 years of the X-rated love bots in Tokyo, Japan on May 19, 2017. These silicon seductresses were the star of an extraordinary exhibition in Japan showcasing sеx dolls that cost as little as a second hand car. Japanese sеx doll maker Orient Industry (originally Orient made dolls for disabled people) were laying bare their dazzling bevvy of beauties in an extravaganza to mark its 40th anniversary this week. Here: Orient industry prides itself on its detail with two looking extremely real as they sit flirtatiously on a couch. (Photo by Masatoshi Okauchi/Rex Features/Shutterstock)

A man and a girl take a dip in icy waters during celebrations for the Orthodox Epiphany in the Sea of Japan in the far eastern city of Vladivostok, Russia, January 19, 2016. Orthodox believers mark Epiphany on January 19 by immersing themselves in icy waters regardless of the weather. (Photo by Yuri Maltsev/Reuters)

A Japanese girl participates in a calligraphy contest to the celebrate the New Year in Tokyo January 5, 2015. Over 3,000 calligraphers, having qualified in country wide competitions throughout Japan, took part in the annual contest to celebrate the new year. (Photo by Issei Kato/Reuters)

This series of pictures shot by satellite, show the man-made world as astronauts see it. Artist Benjamin Grant uses Google Earth to find the most compelling satellite images of human civilization. The stunning pictures of sprawling metropolises and vast reservoirs are sometimes unidentifiable until zoomed in. In order to find an extraordinary picture in the practically endless supply of satellite data, Benjamin focuses on the themes of current events or environmental issues. Here: Industrial Sector, Tokai, Japan. (Photo by Benjamin Grant/Digital Globe/Caters News)

A child looks at window cleaners work while dressed in sheep (C) and monkey costumes, denoting animal signs of the Chinese zodiac calendar, during an event marking the upcoming end of the year at a hotel in Tokyo, Japan, December 21, 2015. According to the zodiac calendar, 2015 is the year of the sheep and 2016 is the year of the monkey. (Photo by Thomas Peter/Reuters)