Kujou and Yanagi are both taking part in the Astronomy Club's welcome trip for new members. Yanagi is reeling from their accidental kiss, but Kujou remains oblivious around him--and unguarded. Hoping to press his advantage, Yanagi tries to get her to open up about her feelings toward him on their way to a stargazing exercise, but a sudden downpour leaves them stranded together...overnight!