Badminton star Yonex (Yonex) was troubled by manipulation of volunteer service activity data.

Yonex University said on its 4th day that there were "several mistakes in calculation of travel time, error in calculation of activity time, mistake in training place, lack of photo materials, and so on." "We are pleased to report that we have voluntarily reported the details.

Yong - Dae won gold medal at the 2008 Beijing Olympics badminton mixed doubles ceremony and was included in the special military service exemption.

However, he was transferred to the arts athlete in the second half of 2016, after his retirement from the national team for the 2016 Rio de Janeiro Olympic Games.

The arts athlete must perform 544 hours of service in 34 months.

Yongdae mainly taught badminton dream trees in Seoul and Jeolla provinces.

"It was important for me to fulfill my duty of service because I was selected as an athletic athlete because it was a great benefit of military service exception. I worried about miscalculation, and I did an additional 25 hours of volunteer work and completed 569 hours" .

However, during the last year, Yongdae proved that there were overlapping photographs among the evidence that led youth players in a gym in Mapo-gu, Seoul.

It also raised suspicions that the distance and time traveled for volunteer activities were inflated.

"When I register the starting and ending addresses of the volunteer hours, I added to the sum of the travel time according to the distance and the filling time of the volunteer time.

He also participated in the PyeongChang Winter Olympic Games' success-sharing citizenship event, received recognition from the National Sports Promotion Corporation but could be interpreted as a voluntary service activity.

Yongdae said, "Although there have been mistakes in the various processes, it is my greatest responsibility that I can not confirm everything from the beginning to the end." "I wish you the best of my sincerity and perfect service duty I made a mistake like this, and I am very self-indulgent. "

(Photo: Yonhap News)