• South Korean girl group Girls Generation member Yoona attends the Louis Vuitton Exhibition 'Volez, Voguez, Voyagez' on April 21, 2016 in Tokyo, Japan.

South Korean girl group Girls Generation member Yoona attends the Louis Vuitton Exhibition 'Volez, Voguez, Voyagez' on April 21, 2016 in Tokyo, Japan. (Photo : Getty Images/Christopher Jue)

YoonA has proven that she is a lady true to her word when she completed a promise she made linked to a specific viewership percentage for the drama "The K2." The Girls Generation singer met with three lucky fans who were invited to visit the tvN series' filming set.

"The K2" drama has been enjoying strong ratings since it debuted on Sept. 23. Prior to the tvN drama's premiere, cast member YoonA promised that she will invite some of her fans to tour the drama's set if TV ratings reach 3 percent. Recently, the Girls Generation group member fulfilled the said promise and invited three fans to join her on-set.

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YoonA met the three lucky ladies on Oct. 12, Wednesday, and accompanied them around the drama set, according to All Kpop. The South Korean singer turned actress even shared several selfies with her special guests.

With the drama's rising popularity, avid fans may get the chance to enjoy other perks from YoonA and her co-star Ji Chang Wook. The two celebrities previously shared that they will gift 100 fans with a coffee treat if the tvN drama's TV ratings reach 5 percent. If the viewership share surpasses 10 percent, YoonA and Ji will release a virtual tour of their respective homes.

Meanwhile, Ji and YoonA would need to schedule their promised coffee treat in the coming weeks. "The K2" surpassed the 5 percent TV rating mark with its episode 5. Aired on Oct. 7, the tvN series registered a viewership share of 6.8 percent, according to Nielsen Korea, as cited by Korea Herald.

The said episode even peaked at 7.6 percent given an interesting scene that involved the drama's lead characters. Viewers witnessed YoonA and Ji's cute behaviors when their respective characters, Anna and Je Ha, expressed their happiness over a ramen moment.

At this time, it is still unclear if the tvN bodyguard drama will surpass the 10 percent TV ratings mark. The series already reached its halfway point with the release of episodes 7 and 8 that aired during the week of Oct. 14.

"The K2" airs every Friday and Saturday on tvN. Watch Je Ha and Anna's cute ramen moment below: