Aye! That's a Chick

The guy is about to graduate from a preparatory military school. The instructor had taught him that the enemy on the battlefield was a dangerous and treacherous chicken demon who did not deserve sympathy or mercy. In the last lesson, the cadets are given the task of observing the "chickens" captured at the front, living next to them for a while, and then shooting them at the graduation ceremony. But, holding a rope tied to a chicken, the main character begins to wonder: is it really a chicken?