To escape a sudden downpour, two classmates sneak into the school building at night, leaving only the two of them... As they warm each other's soaked bodies, they naturally become entangled. (Hamabe Yayoi FNS-253)

College student Yayoi returns to her hometown for summer vacation. There, she reunites with old friends and throws a takoyaki party. Among them is the man she's always liked. After the party, Yayoi and he, heading home in the same direction, walk together along a nostalgic path. Suddenly, it starts raining. They take shelter in their old school, sneaking into the building through a window that's always been unlocked. Despite it being summer, their soaked bodies feel cold. They huddle together for warmth, their bodies naturally intertwining. Overwhelmed by feelings from their student days, they reminisce about the past and continue having sex even after the rain stops.