On November 6, Sidus HQ revealed, "Seulong is enlisting as an active-duty soldier on the 28th. In respect of his wish to enlist quietly, no special events will take place."
Originally, Seulong planned to enlist as a conscripted policeman, however, he failed the conscripted policeman exam. As a result, he'll be serving as an active-duty soldier for his mandatory service. He'll be enlisting on November 28.