Hyorin ft. Bora - Alone 2.0
Well, it's that Sistar19 resolves around a concept on their own anyway. They are a "conceptual group" so it's only natural their current works may be akin to past ones.
Le numéro '19' signifie l'âge d'une femme mature et qui incarnera aussi le sentiment d'innocence qu'elles ne sont pas certaine de ressentir. Les jeunes femmes vont nous dévoiler ces sentiments à travers le concept et de leurs paroles.
"Number19" represents the age of a mature woman who will also incarnate the sentiment of innocence women (of that age) are insecure about.
Edit: Sorry for double-posting. Would've expected someone else to post in the meantime.