I watched this shocking work where girls with glasses and plain appearances hide incredibly lewd inner selves! The story follows three characters—family restaurant waitress "Ruka," class representative "Riina," and the sister who adores her brother "Rika"—as they undergo M-style training and fall for male anatomy, keeping me glued to the screen.

First off, Ruka's waitress outfit during the violation scenes is unbearably cute! Normally plain, but in intimate moments, she shakes her ample bust and grinds her hips on her own, making it impossible not to get excited. Inaba Ruka's performance shines, as she shyly reveals her lewd side with lines like "Please torment me more..." in standout scenes.

Next, the busty duo of Riina and Rika isn't bad either. Riina's class rep character, in particular, has a compelling arc as she descends into depravity through training. However, I felt the third character, Rika, was a bit lacking. Her brother-loving setup is fine, but compared to the other two, she lacks impact and could have been developed further.

Overall, the sight of these plain, bespectacled beauties awakening to their desires and craving men is the pinnacle of eros. In the M-training scenes, they repeatedly confess, "I... actually... love cock... I'm a slut..." and the contrast is heart-pounding. There are many shots emphasizing their large breasts, allowing full enjoyment of their voluptuous bodies, which is a key highlight.

This piece can be called a masterpiece that skillfully leverages the gap between appearance and inner self. Ruka's cuteness and Riina's bust stand out, and watching all three, including Rika, feels like observing their growth. Even non-fans will find it worth a watch!