Tights-covered legs on the cover...! Meaty armpit in the beginning of the volume...! Shirogane in the bodysuit on the cover of Chapter 33...!!! Shirogane's crouching ass when she tries to sneak around in the bodysuit...!!! Chapter 37's cover placing the reader's view at a position lower than Shirogane's crotch...! Chapter 39's cover placing the reader's view at a position lower than Himawari's crotch...! Toiri's friends' imagination of Iris lewdly holding her tights-covered foot in front of his face...!!! Himawari's armpit in the omake illustration...!!!
The pose battle in Chapter 39 is some of the funniest shit I've seen in ages. Perhaps rivaled by Toiri's googly eyes a moment later.