K-pop group ONF released the second music video teaser for their title track 'Open The Door' on the 16th through their official SNS channels. The teaser is for their 2nd regular album Part.2 titled 'ONF:MY SELF'. The group is generating anticipation among fans with a new storyline and world-building concept. The teaser showcases ONF's unique and distinctive narrative approach, promising an exciting new chapter in their musical journey. The 2nd album Part.2 is drawing attention as a work that reflects the group's musical growth and fresh storytelling.