There is a laboratory that conducts experiments on a captured young man's daughter using skillful techniques, aiming to achieve a terrifying multiple orgasm (simultaneous multiple climax). Its purpose is said to be for countermeasures against declining birth rates... This time, they caught a beautiful girl-like young man's daughter, Misato, who was lured through social media. Fearful and struggling, Misato is restrained for the procedure and forced to drink a miraculous research chemical that feminizes her body while also enhancing male performance. As a result, Misato, trembling with embarrassment, begins to unleash her hidden lewd nature...