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[Bonus Edition] Homeroom Teacher: "From today, I appoint Arakawa as the sex disposal duty officer. If you don't fill this beaker to the brim with sperm within a week, you'll be expelled, so do your best." Sora Arakawa

Told by her homeroom teacher that her "contribution to the class is low," Sora-chan (23) is appointed as the sexual service duty officer. She is told that if she cannot fill a beaker with sperm within a week, she will be expelled, so she earnestly devotes herself to collecting semen. At first, she feels embarrassed about her duty, but she decides to do her best if it helps improve the boys' academic performance. This work features an adult wearing a school uniform cosplay, depicting Sora-chan's desperate efforts. Viewers will be drawn into her struggle to fulfill her mission.