Shikimori's Not Just a Cutie manga volume 18 features story and art by Keigo Maki.

Izumi-kun and Shikimori-san have decided to dedicate every moment possible to something that could determine their future as a couple: studying for their entrance exams! But there are so many fun events going on at school… In fact, summer and fall are full of one cool distraction after another! Amid this rollercoaster of temptation, Shikimori-san's secret ambition for the future is revealed…