Back on September 20, Nana attended a press conference for her upcoming movie 'Confession'.
At that time, Nana wore a short sleeveless black dress, and made a lot of people gasp in surprise with her tattoos that were seen all over the body.
Since she had no tattoos before, but they were suddenly so many of them, lots of people wondered whether they were just henna tattoos for her role or actually real.

During the press conference, Nana said, "My character in 'Glitch' 'Heo Bo-ra' is someone who studies about mysterious phenomena. The production team built the base of 'Heo Bo-ra' for me, and I gave some ideas on her personality and appearance afterwards. We discussed those ideas together and implemented them when we all agreed."
She continued, "I especially gave more ideas on the colors of her clothes and tattoos on her body. She's a character with various tattoos, and I wanted each of her tattoo to have a meaning. So, I carefully chose each design."

Nana answered, "'Heo Bo-ra' wasn't the reason why I became interested in tattoos. I got these tattoos done, because I wanted to get them."
She added, "Maybe one day, I would be able to tell the world why I got them done. I don't know if the day will come, but... It was my personal choice to get these tattoos done."

(SBS Star)