Insector

A school teacher transforms into a giant, spherical beetle and kills half the students, while a mysterious figure called the Black Ant saves those who remain. The incident brings the Black Ant into the spotlight, turning a figure once dismissed as an urban legend into a subject of public attention. The government sends a team of Bug Reapers—specialists who capture insectors—on a secret mission, following accounts that they are pursuing the Black Ant. Beneath the persona is Ka Mi-sun, an ordinary high school student with an anthill inside his body. To keep its insects from eating him, he must fight against them, though he does so reluctantly.