I actually watched the 4th installment of the popular series, and the setup of inviting J●s on their way home from school to the studio, calling their friends under the guise of a game challenge, was a truly unexpected surprise! Their flustered, blushing expressions exuded tension, making me glued to the screen. In the tight vibration challenge using a vibrator, the intense vibrations caused clitoral tremors, and with their limbs restrained, their pussies and anuses were fully exposed in a powerful scene. The moment they couldn't withstand the pleasure, squirting fluids and 'giving birth' to the vibrator, the harmony of moans and vibrations resonated, heightening the excitement. Afterwards, the insertion of a raw penis into the emptied pussy, leading to a creampie with high pregnancy risk, depicted the blossoming of 'sexuality' for these innocent young ladies, making it highly engaging. However, while the penalty game involved immediate creampies for all, I felt the insertion game could have been more inventive. The slightly rushed feel was a bit disappointing, and with more detailed direction, it could have added greater depth. The sweet, intimate sex with staff who sneaked away also provided a cozy atmosphere, serving as a good accent to balance the overall content. In summary, the combination of cute performers' acting and intense scenes resulted in an enjoyable production.