A recent wave of departures by popular idols – from Heeseung of Enhypen to Mark and Ten of NCT – has surprised fans, with multiple members leaving their groups within a single month.

Industry insiders, however, say such moves are not unusual, particularly among idols in the later stages of their careers. They point to a combination of artistic ambition, contract cycles and the growing financial independence enabled by social media.

Heeseung announced on March 10 that he would leave Enhypen and transition to a solo career through Belift Lab. The agency said the decision followed “deep discussions” about the group’s direction and each member’s future, adding that it chose to respect Heeseung’s distinct musical aspirations.

Mark and Ten announced within days of each other that they would not renew their contracts with SM Entertainment. While Mark will conclude all activities with NCT and its subunits, Ten is expected to continue participating in group activities under future agreements with a new agency.

An executive at a major K-pop agency said such decisions often emerge as idols approach a decade in the industry.

“There are always members who have a clear sense of what they want to pursue musically,” the executive said. “Before debut, they prioritize making it into a group and often compromise. But over time – especially after completing military service – many begin to seek individual careers.”

Most K-pop groups operate under the standard seven-year contract recommended by the government. NCT members are believed to have signed longer agreements due to the ...