Drama "W:Two Worlds" will air its final episode this week with revelations about Kang Cheol and Yeon Joo. Meanwhile, MBC will treat the fans with extra episode on Saturday, which will show some behind the scene acts of the television show.

The final episode will also disclose the possibility for Kang Cheol and Yeon Joo to live happily together in both worlds - comic and real world.

Episode 15 ended with Yeon Joo's teacher and Thoracic surgeon Park Min-Soo rushed to his office to open his computer and begin the final episode of the W webtoon. The professor whose nickname was Crazy Dog began to read as he grasp his coffee.

MBC released the final episode preview on its Youtube Channel.

You can watch the preview with English subtitle below

It is highly possible that the final episode will appease the fans who love the romance between Kang Cheol and Yeon Joo. However both writer Song Jae-jung and MBC keep mum about the ending of "W:Two Worlds" to give fans a surprise.

As a treat to the fans, MBC will air extra episode on Saturday Sept. 17 with some behind the scene footages.

Han Hyo-Joo, Lee Jong-Suk and Kim Eui-Sung delivered a stellar and memorable performance. While supporting cast members Jung Yoo-Jin, Lee Si-Eon, Heo Jeong-Do and veteran actor Park Won-sang have proven their solid acting.

Meanwhile, cast members and production team are equally sad to end the series. Lead actress Han posted her farewell message through her agency's BH Entertainment Instagram. She posted her picture with a caption saying that she is sad to say goodbye to her character in the drama.

The final episode of "W:Two Worlds" aired Wednesday, Sept.14 on MBC.