Actor Moon Geun-young, 39, once dubbed the "Nation's Little Sister," has been revealed to have secretly married musical actor Jung Pyung, 46.

Her agency, Cree Company, announced today (July 29) that "Moon Geun-young and Jung Pyung recently tied the knot."

Specific details, such as the exact wedding date, were not disclosed.

The two had been in a long-term relationship, and the wedding was replaced with an intimate gathering attended only by family members.

Taking to social media earlier today, Moon shared a handwritten letter saying, "I have met someone with whom I want to walk the path I always walked alone, share the times I spent worrying by myself, and make each other smile over the smallest things." She added, "We hope to fill our days ahead as a duo rather than alone."

(Photo: Screen capture from Jung Pyung's Instagram, Yonhap News)