Why it worked
This video likely worked due to its satisfying ASMR qualities, focusing on the visual and auditory experience of lathering soap. The novelty of the soap shapes and the clean, simple presentation would have appealed to a broad audience seeking relaxing content.
Summary
The video shows hands washing two different soaps in a sink. First, a strawberry-shaped soap is rinsed and then lathered. Then, a black, oval-shaped soap is rinsed and lathered. Finally, both soaps are shown together being lathered.