A Side Characters Love Story

"Up till now, even kissing or holding hands has made me so nervous. But now..."
An unexpected mix-up leads to a year-end excursion for Nobuko and Hiroki, who find themselves sharing a hotel room rather suddenly. But as their night alone with each other begins, neither one feels quite prepared... A turning point approaches in the love story of these side characters, as feelings of affection begin to blossom into something more.