don’t u dare forget abt this line #Hearts2Hearts

In the Korean comments

The comments single out Stella’s narration: one reads, in translation, “Stella’s narration part is seriously amazing.” They also give Carmen and Stella’s pairing a compact nickname, 카스텔라 (Kaseutella, Carmen plus Stella).

What the words mean

카스텔라 (Kaseutella) ordinarily means castella cake, but here it playfully combines the names Carmen and Stella. In “카스텔라 조합은 사기가 맞다” (Kaseutella johabeun sagiga matda, literally “the Kaseutella pairing really is a fraud”), 사기 (sagi, fraud) is exaggerated casual slang meaning the pairing is almost unfairly good.