apparently i'm 27 in korea

Why Koreans care

The title invokes the older Korean counting convention: under that system, a baby starts at one and everyone gains a year on January 1. This explains how the video can say 27 while a comment calls her 26—the numbers use different age systems.

In the Korean comments

One Korean-language comment goes directly to that age contrast, reading, in translation, “She is 26.” It turns the title’s “apparently” into the clip’s central detail: both numbers can describe the same person under different counting systems.

What the words mean

언니 (eonni, older sister) does not indicate a biological relationship in these birthday comments. Addressing Giselle this way is a familiar, affectionate way to speak to an older female idol.