Nurse Hitomi's Monster Infirmary Vol. 8 (manga)

When Hitomi goes on the school camping trip as a chaperone, she’s excited to sleep in a log cabin and sit around the campfire. But her students are pre-occupied with other things, gossiping about crushes and who-likes-whom. Some even work up the nerve to confess! Little do they know that a sinister force lurks in the woods…