[後藤寿庵] 家庭性教師 (正しい性教育。) [英訳] [DL版]
#183823 - All he heard was, Now what am I supposed to do again? He finally got to the third floor and he listened at the teachers door. When the whorehouse opened and people started to come frequently he noticed that everyone wanted to go to the third floor where the teachers were. He went to the first floor where the janitors rooms were and he listened at the door.