Aespa's Daily Life in NYC

In the Korean comments

One comment reads, in translation, “Everyone’s personality is showing,” treating the members’ distinct behavior as the detail worth watching. Another calls Ningning an adorably mischievous 막닝이 (mangningi, youngest Ningning).

What the words mean

막닝이 (mangningi) playfully combines 막내 (maknae, the youngest member) with Ningning’s name. It is an affectionate nickname here, not a separate person.