ONF held a special showcase on the 17th at Seoul's Sangam Cube Convention Center to commemorate the release of their 2nd regular album Part.2 'ONF:MY SELF'. The group performed five songs including the title track 'Open The Door' and delivered diverse setlists featuring 'Escape', 'Mirage', 'Open The Door', 'Popping (여름 쏙)', and 'The Stranger', earning enthusiastic responses from fans. Special segments were interspersed throughout the performance, including the 'PR:MY SELF' corner where members selected keywords and shared stories about favorite tracks, music video behind-the-scenes, and comeback preparation experiences. Particularly moving was the 'PR:MY SELF' corner where composer and producer Hwang Hyun delivered an encouraging message: "Don't be afraid when people talk about storms coming. Block out the words that try to shake you and believe only in your genuine hearts." The title track 'Open The Door' combines intense rock sounds with ONF's solid vocal performances, as the group has built its distinctive identity and received praise for high-quality music. ONF will continue with special comeback stages from the 18th to 20th at the same venue.