Let start this Kdrama, Fighthing!!!

Cast
Lee Kwang Soo  -  Lee Seo Jeong
Song Ji Hyo       - Chung Sun Im
Miley Cyrus       - Hannah
Lee Joon (MblaQ)  -   Han Tae Hyun
Key (Infinite)     -  Lee Seo Han
Wang Ji Hye      - Jeon Ji Hyun
Bomi                 - Bomi


Do you have any ideas, this is actually my own gibberish imagination.

         It was raining cats and dogs that day, the day I finally found her.