In the video, Ku is sitting perched on the open trunk of a car, against a backdrop of flowing plants and flowers. Ahn's voice can be heard saying repeatedly, "You're so beautiful." The two appear to be in a parking lot.
Ahn also took a close-up shot of items on his car trunk including what seemed to be a box containing a wedding ring and a card resting on a bed of carefully arranged grass and flowers.
Ahn and Ku will tie the knot on May 21 with a simple get-together with their parents. The couple have decided to donate the money that would have otherwise gone to a wedding ceremony to a children's hospital.
Ahn's Instagram handle is @aagbanjh.