[Vernoni Mohani?] Riding a bike and listening to music at Han River.

In the Korean comments

One commenter gives a sharp second-watch cue, writing in translation: “Hansol is simply cycling along the Han River at the same speed, but the world becomes round, flattens again, and the viewpoint shifts—from the front, the back, above and close up.” The same comment highlights shots that wait for Vernon to approach while he is still a tiny point in the distance.

What the words mean

The title’s 버노니 뭐하니 (Beononi mwo hani, "Vernon, what are you doing?")? (Beononi mwo hani?, “Vernon, what are you doing?”) spells 버노니 (Beononi) as a cute, phonetic version of 버논이 (Beononi, an affectionate form of Vernon). Its rhyme with 뭐하니 (mwo hani, "what are you doing?")? (mwo hani?, “what are you doing?”) makes the title sound playful and familiar. Another comment calls the concept 감다살 (gamdasal), short for 감 다 살아 있다 (gam da sara itda, “all the instincts are alive”). Here it means the choice to combine the current weather, a bike ride and a playlist shows excellent taste and timing.