Who is the man in the photo?

The hero's name is Jang Hyun Seung, and his nickname is Peace O (≧ V ≦) O ~ ~. He was originally a member of B2st, and now he and Kim Hyun-a (Ma), the heroine in Trouble Maker, have formed a new group called Trouble Maker. \(^o^)/~

The MV itself developed into a spy-to-spy background story, so the final ending continued the ambiguous relationship between the two, and with the command of "killing each other's information", it developed into mutual harm. Then, on both sides of the flame lit by Kim Hyun A, the two men continued to compete with each other in a provocative way. It ended with a gunshot by Xuan Cheng. The final picture ends with a black background and a gunshot, which is not a real ending. This kind of blank space actually leaves more room for the audience to guess, which is more unsatisfactory than giving the ending directly.