Along with the rapid change of the art market, there is a keen interest in the art world. In particular, the active purchase of art by MZ generation collectors and the start of collections are promoting the diversification of art appreciation and collection methods. In line with this trend, the Dongtan branch of Lotte Gallery held the "Art Collective: Now & Never" exhibition, where visitors can meet the works of masters who are in the spotlight in the contemporary art market as an exhibition to mark its opening. This exhibition showcases precious works that are "hard to own now" from foreign artists who have emerged with original visual culture against the backdrop of urban culture, as well as works by artists representing Korean contemporary art. The special exhibition "Art Collective: Now & Never" to commemorate the opening of the Lotte Gallery Dongtan branch has been successfully held to provide visitors with a deep artistic experience and effectively show various trends and values of contemporary art. This exhibition introduces the joy of collecting to new art lovers and provides existing collectors with a special experience that enhances the value of the collection.