With Yoon having left the group in 2004, they decided to take a break in 2006 as the lead vocalist of the group Kim Tae-woo was required to perform his compulsory military duty.
由於Yoon在2004年離開了小組，他們決定在2006年休息，因為Kim Tae-woo組的主要歌手被要求履行他的義務軍事職責。