On March 10, it was confirmed that Heeseung is leaving ENHYPEN, the popular K-pop group he debuted with in 2020. This announcement sparked an immense reaction from fans, known as ENGENE, who expressed their discontent and desire for Heeseung to stay in the group. The news quickly became a trending topic on social media, particularly on X, with hashtags like #ENHYPEN_IS_7 and #ENHYPEN_HOME appearing as fans rally behind their favorite member.

In the wake of Heeseung's departure, the ENGENE fandom has initiated an online petition urging the management to reconsider this decision. The petition garnered thousands of signatures within hours, indicating the strong support Heeseung has from his fan base. The passion of the ENGENE can be seen as a reflection of the collective power that K-pop fandoms wield, especially in situations where they feel their members' well-being is at stake.

In a remarkable display of loyalty, fans in Latin America came together to raise funds for sending protest trucks to South Korea, complete with banners and placards demanding Heeseung’s retention in the group. This grassroots campaign not only highlights the geographical diversity of K-pop fandoms but also illustrates how deeply personal the connections between idols and their supporters can be, potentially impacting the future of the group's dynamics and decisions made by its management.