Whichever one signals romance to YOU. Arisu-shi - our adorable Student Council PresiDENT, that is - tried taking me up to the rooftop ONCE, so I assume the latter is for confesSIONS.

( please..... )

Natsume Sakasaki - your boyfriend for the WEEK. ( c: ! ) Though I suppose if you're not FREE, it can start some other TIME.