Photo/IllutrationA woman about to slip out of her "yukata" robe in a striptease at Earth Day in Nagoya in 2015. The city government is unimpressed and looks likely to withdraw its support for the event due to the incident. (Captured from video)

NAGOYA--The annual Earth Day event held here is likely to be stripped of city backing because a professional stripper apparently performed at the event two years ago.

The woman slipped out of her “yukata” robe to the beat of a seductive tune and later tied herself up with a rope.

The audience was then invited to come to one of her regular performances to feel her breasts.

A video of the striptease has been uploaded to YouTube and could still be viewed as of Jan. 27.

“If a municipality endorses the event, it would mean that it agrees to promote the objectification of women,” said Fusako Okada, 65, a woman from Nagoya who demanded the city stop supporting the annual event.

Earth Day is held in the spring with the aim of spreading eco-friendliness.

It is held in central Nagoya by a committee comprising citizens' groups. The city government has officially supported the event since 2011.

The striptease took place in May 2015 at an outside tent dubbed “Chikyu Hihokan.” The name literally means “earth treasure museum,” but “hihokan” is a term used almost exclusively by erotic museums.

The footage shows that while the woman jumped about, causing her breasts to jiggle and bounce, she kept her nipples and lower area hidden with some kind of fabric. Later in the same video, she veers into sadomasochism by tying herself up with a rope.

Those watching the display are then invited to come down to her club to get more intimate as she says, “Make sure you have some fun when we meet again at the strip club sometime.”

According to Nagoya city, Earth Day is this year scheduled for April 22-23, and a document requesting endorsement from the city government was submitted by the organizing committee in December.

The city said that it had officially supported Earth Day as “an event to spread environmental awareness” until last year.

A city official who viewed the video said, “We're worried since this performance could be considered a case of public indecency. We would not have approved it had the performance been described on the endorsement form.”

City officials have been unable to reach the organizers.

The decision on whether Nagoya city will officially support this year’s Earth Day has been put on hold as of Jan. 26, but the answer will likely be a no-no.