I don't have the authority to make a new topic (500 cr pnts.. grr) but there is a japanese version which is a series.. so far it's ok i'm at ep 4 out of 11 episodes and the comments look promising but the korean version is still the best...
Drama: My Sassy Girl (JP)
(Taken from Aznv.tv)
猟奇的な彼女 / Ryokiteki na Kanojo
Based on the hit South Korean movie, My Sassy Girl, the character backgrounds and plot details will be changed for the drama. While the protagonists in the original film were college students, this time the pair will be a marine biology professor, Masaki Saburo, and Takami Riko, an aspiring writer.
Directed by: Doi Nobuhiro
Cast: Kusanagi Tsuyoshi, Tanaka Rena, Matsushita Nao, Suzuki Emi, Yamada Shintaro, Oishi Mitsuki, Chino Yuko, Kokubo Rie, Kosse Koichi, Ichige Yoshie, Matsushima Nahomi, Tanihara Shosuke, Kamikawa Takaya, Ichikawa Somegoro
Fansubbed by: Eternal Fansubs (Official Subtitle Thread)