On Thursday night this week, final episode of MBC drama "W:Two Worlds" will air. The audience will be waiting for the possibility of a happy or sad ending, and for the improbable relationship between Kang Cheol and Yeon Joo.

"W:Two World" is recorded as one of the most popular drama in Korea this summer. The drama has successfully outranked KBS "Uncontrollably Fond" as the most favorite Thursday-Friday night drama.

Since its premiere last July, "W:Two Worlds" enjoyed a steady increase of popularity in Korea and internationally. Its popularity even ousted the popularity of "Descendant of the Sun."

According to The Inquisitr, upsurge of its popularity has also given the opportunity for the drama's male lead actor Lee Jong Suk, who plays Kang Cheol, to indirectly promote some of his humanitarian endeavors.

Audience are waiting anxiously for the final episode this week.

In last week's episode, Kang Cheol removed wedding rings from his finger and Yeon Joo's finger. He then gave Yeon Joo the freedom to decide how the final chapter of the story will end, leaving the audience in awe.

Yeon Joo, played by the beautiful and charismatic actress Han Hyo-Joo, had said that she wanted both Kang Cheol and her father, Sung Moo to always be with her. However, the writer Song Jae-jung may give an unexpected end for the three of them, Kang Cheol, Yeon Joo and her father will cease to exist.

Writer Song is also reported to reveal the scripts for episodes 1-15, as Soompi reported. She said that as she finished the scripts, she wanted to share them the audience.

"I have more time now that I've finished the script, and I wanted to leave a message of thanks," she said. "I sincerely, deeply thank the viewers of 'W' - the strange, convoluted, complicated, weird, and rude 'W' - who invested a lot of time into the drama over a long period of two months."

The final episode of "W:Two Worlds" will air on Thursday, Sept. 15 on MBC.