SKS-020 - My Glasses-Wearing Little Sister's Secret Service

Fellatio works really need to feature a pretty face. In the first chapter, Kokomi Naruse is filmed beautifully, and the glasses suit her well. Thank you for that. Overall, I realized that even if the face quality isn't great, putting on glasses makes them look decent enough. Many performers of that type appear in this. If you don't like glasses, this probably isn't for you. It uses the 'little sister' trope, but it's lazy—it's just them saying 'Onii-chan' and wearing school uniforms or gym clothes. They could have put a bit more effort into the scenario. In Nao Ayukawa's scene, it's a mystery why there's a mosaic over her glasses in the second half (it flickers on and off). It happens even when she's nowhere near the male genitalia. What on earth is that about??