"Hehe, today I’ll be the one ‘educating’ you, teacher?" Endou Shimiko, the book-loving library committee member, has created a fictional character named "Era, the Evil Executive" based solely on her knowledge of books. Dressed in a bondage-style outfit, she pushes the teacher onto the bed with a cheeky smile. In her hand is a wet masturbation sleeve. She wraps it around the teacher’s rigid member, basking in a sense of superiority as she teases him with her clumsy, inexperienced touch. But the price she paid for underestimating a grown man’s instincts was steep. The tables turned in an instant, and Shimiko found herself pinned down instead. "A cheeky executive like you needs a lesson." The teacher’s relentless caresses with his fingers and tongue begin, and the hell of "edging"—where he stops just as she’s about to climax—begins. Her heightened senses are constantly teased; unable to endure the mind-melting pleasure and the agonizing deprivation, she finally casts aside her pride and prostrates herself. "Please…! "Please... give it to me!" The next morning, after devouring the cock given to her as a reward and being impregnated all night long. Shimiko’s nipples had swollen red like grapes from repeated caresses, and her body had become so sensitive that even the slightest friction from her underwear sent shivers of pleasure through her. Even in the library and classrooms after school, she couldn’t cool down from last night’s heat, her flushed face and hips continuing to writhe lasciviously.

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「ふふ、今日は私が『教育』してあげるわ、先生？」 読書好きの図書委員・円堂シミコが、本の知識だけで作り上げた架空のキャラクター「悪の幹部・エラ」。ボンテージ風の衣装に身を包んだ彼女は、生意気な笑みを浮かべて先生をベッドに押し倒す。手には濡れたオナホール。先生の剛直をそれで包み込み、未経験ゆえの拙い手つきで弄びながら優越感に浸っていた。 だが、大人の男の本能を侮っていた代償は大きかった。形勢は一瞬で逆転し、シミコは逆に組み敷かれる。「生意気な幹部にはお仕置きが必要だな」。先生の指と舌による執拗な愛撫が始まり、絶頂に達しようとするたびに動作を止められる「寸止め」地獄が幕を開ける。高ぶる神経を焦らされ続け、脳が蕩けるような快感と欠乏感に耐えきれず、ついにはプライドをかなぐり捨てて土下座する。「お願いします…っ！ 先生の…くださいぃッ！」 ご褒美として与えられた肉棒に貪りつき、一晩中種付けされた翌朝。シミコの乳首は度重なる愛撫で葡萄のように赤く肥大化し、下着と擦れるだけで快感が走る体になっていた。登校後の図書室や教室でも、彼女は昨夜の熱を冷ますことができず、火照った顔と腰を淫らにくねらせ続けるのだった。