10/10 plot lines

MY CHEST HURT, I WAS OUT OF BREATH, CRYING FOR 4 HOURS STRAIGHT… CRIED MORE READING THIS THAN I DID AT MY GRANDMAS FUNERAL

【summary】
a mushroom inhabits the body of a human in order to infiltrate a secure human base built to prevent monsters from attacking people. the mushroom often runs into a man who is in charge of killing anyone he felt was a monster.