"Stand up! Bow! Snap!" The graduation ceremony begins amid the sound of bloomer rubber bands and cries. An honor student girl conveys the spirit of bloomers to current students, a tsundere girl calls a classmate to give her bloomers, a lolita girl makes the teachers remember her bloomers, and a big-bottomed girl rubs her bloomers against them in the library of her memories. A youthful bloomer work for those who have wanted to do something about their beloved bloomers.