Earlier today, we reported on the departure of Alexander and Kim Kibum from idol boy group, U-KISS. Moments ago, Kibum explained his decision through a long tweet, which read:

"Hello this is U-KISS Kibum, or more specifically, an ex-member of U-KISS, Kim Kibum. After two months of delay, I've finally plucked up the courage to write this post. First off, the agency and I have made an agreement about my exclusive contract on February 2011. As the agency desired a member replacement, we wrote out a consent document for a contract dissolution, and from that day on, I became a former member of U-KISS. Contrary to what most of you might be thinking, this is unrelated to my Piro Piro business… nor is it about losing interest in U-KISS. I always thought importantly of U-KISS more than anyone, and I'm proud to say that not once did my Piro Piro character business impede my schedules with U-KISS.. I always thought of the members as more than family. I'm extremely upset that I have to part with them like this, but it was because of my lacking areas which warranted my former agency to desire a member replacement. I may be leaving on a one-sided decision, however, I was able to learn a lot and meet many people, as well as the U-KISS members. My feelings are very mixed up on the thought that the few lines in this message could hurt a lot of people I love. I will continue my personal activities on broadcast. Thank you to all the people who supported me wherever I was, and I will meet you once again as an entrepreneur, Thank you."