Behind-the-scenes photos from the final day of the Knock on Volume Two performance

Knock on Volume Two, which was Boy Next Door's first world tour

These are behind-the-scenes photos from the last day of the performance haha

Filling the KSPO DOME with enthusiastic cheers, the first world tour

Boy Next Door's dazzling energy, perfectly decorating the finale stage, is truly moving.

Looking at the last commemorative photo makes me feel a bit emotional.