A dog relaxes in an oxygen capsule “DOGS O2” at the Ownd Cafe on September 13, 2007 in Tokyo, Japan. The capsules come in a variety of sizes available for both dogs and cats for relaxation purposes. (Photo by Koichi Kamoshida/Getty Images)

HRP-4C, a five-foot humanoid robot developed at Japan's National Institute of Advanced Industrial Science and Technology, sings and dances with performers at the Digital Contents Expo in Tokyo on October 17, 2010. The robot runs entertainment software called Choreonoid, a name formed from the words “choreograph” and “humanoid”. (Yoshikazu Tsuno/AFP)

Gohei Hayashi of Kyoto University is seen in side his movable eco and healing house, “Kujira (Whale) House” July 21, 2007 in Tokyo, Japan. The house is made from Japanese paper, bamboo and tatami mat. Hayashi has travelled 500 km from Japan's ancient city, Kyoto to Tokyo with his eco house to promote his house which can be placed both out inside and outside to provide a private space. The Kujira house is available at the price of 800,000 yen (roughly US$6600). (Photo by Koichi Kamoshida/Getty Images)

A male sea lion Leo writes the word of tiger in Chinese character at a New Year's attraction to celebrate the Year of the Tiger at the Hakkeijima Sea Paradise aquarium in Yokohama, suburban Tokyo on Monday, January 3, 2022. The calligraphy attraction by the sea lion will be carried through January 31. (Photo by Yoshio Tsunoda/AFLO/Rex Features/Shutterstock)

Student of Meiji University Yuki Hou licks a screen of Taste the TV (TTTV), a prototype lickable TV screen that can imitate the flavours of various foods, during its demonstration at the university in Tokyo, Japan, December 22, 2021. (Photo by Kim Kyung-Hoon/Reuters)

A landmark lion statue of a department store placed a protective mask is seen Wednesday, August 12, 2020, in Tokyo. The Japanese capital confirmed more than 200 new coronavirus cases on Wednesday. (Photo by Eugene Hoshiko/AP Photo)

Members of the media touch a moving model of a Tyrannosaurus, which uses a dinosaur-type human-operated mechanical suit called “Dino-Techne” by Japanese firm On-Art, during a media preview of the Dinoa Live Exhibition / Amazing Dinosaur Art Exhibition in the Shinjuku district of Tokyo on December 10, 2020. (Photo by Philip Fong/AFP Photo)

Monster girl Crazy Sa-ya, an iconic Harajuku girl and a staff member of the cafe, wearing a face mask poses for a photograph at Kawaii Monster Cafe, amid the coronavirus disease (COVID-19) outbreak, in Tokyo, Japan on January 31, 2021. (Photo by Issei Kato/Reuters)