We will hold a bust measurement game by gathering only busty female college students! We will call out to various types such as slender busty/pure busty/gyaru busty/minimum busty and compete in teams to see which team reaches 10,000g in bust weight first! The winning team will receive a prize! The female college students, who were told by the game organizer that performing the so-called "Pi UP" bust development technique would result in "instant growth due to hormone improvement," were subjected to groping of their bare breasts!