On March 25, 2026, Theo uploaded a new Instagram post announcing open sign-ups for the Manitto Club. One image in the post boldly reads "Be my member," instantly grabbing attention.
Theo also revealed that preorders for the Manitto Club Welcome Kit will start at 2 p.m. on Friday, March 27, and will be available through KakaoTalk Gift. They shared detailed schedule and location information, sparking excited reactions from fans and quickly becoming a hot topic.