Youth Promise (청춘서약) QWER has released their first self-written single,"Youth Promise (청춘서약)" Crafting every lyric and melody themselves, the members capture their shared journey—holding hands through countless doubts and hesitations, vowing never to let go, and pledging to move forward together until they reach the light.Notably, the song’s creation was documented in a real-time documentary series that quickly went viral, and its standalone YouTube release—not on any music platform—surpassed 1 million views within a week, reaffirming QWER’s genuine artistry and the deep connection fans feel with their music.