A large glass aquarium, likely located in a restaurant or seafood market in Đà Nẵng, Vietnam, is the subject of the video. Inside, a substantial, mottled grey and white grouper rests towards the left, while a spotted pufferfish is prominently positioned in the foreground, facing the camera. The pufferfish repeatedly opens and closes its mouth, giving the appearance of a "smile." Another pufferfish is partially visible to the right, further back in the tank. The bottom of the aquarium contains a few small white objects and is mostly bare. Reflections of red, lantern-like decorations hanging from the ceiling are visible in the water above the fish. The base of the tank features a distinctive blue and white checkered tile pattern. A small, cut-off portion of a red sign with white text is visible in the top-left corner, but the text is unreadable. The setting is indoors, with artificial lighting.