Usually, only users can play against us in our strip-off box rock-paper-scissors games, but this time, we have professional actor Kuroda-san joining us for the first time! The challenger this time is Chisato Kanemura, a first-year in the legal department and the slenderest in the company. A large number of SOD production missions are coming up! When a dick is inserted, she transforms into a serious older sister or a naughty older sister!