Upcoming MBC drama 'Triangle' releases its first teaser featuring the three main cast Lee Bum Soo, JYJ's Kim Jaejoong, and ZE:A's Im Siwan.

The three are going to be brothers in the drama who got separated for 20 years. Each of them has their own story and character. They will be joined by other cast such as Oh Yeon Soo and Baek Jin Hee.

The drama 'Triangle' centers the story of three brothers who got separated for 20 years. Lee Bum Soo will play the role of the oldest brother, "Jang Dong Soo", who is an investigator. On the other hand, Kim Jaejoong will play the second brother "Heo Young Dal", who's real name was 'Jang Dong Chul' but has changed  after getting separated with his brothers. He is going to have a tough and fearless character. Lastly, Im Si Wan will play the role of the youngest "Yoon Yang Ha" who's real name is "Jang Dong Joon" who got adopted by a rich family and has a cold character.

'Triangle' is going to air every Monday & Tuesday starting on May 5 following Empress Qi. Meanwhile, watch the teaser below: