Rihoko Sakurai Side Story (桜井梨穂子編 Sakurai Rihoko-hen) is the 5th short OVA of the Amagami SS anime series.
Junichi and Rihoko enjoy some tea as they discuss recent events of the tea club. When Rihoko notices that Junichi dropped something, he reveals it is a new nail clipper developed by NASA, and he offers to use to cut Rihoko's nails. She agrees, but Junichi becomes embarrassed when she tells him he will be cutting her toenails. Despite a few more embarrassing moments throughout the situation, Junichi does a good job of cutting Rihoko's nail, and she thanks him.