TVing’s original series “Duty After School,” directed by Sung Yong-il, creator Lee Nam-kyu, and playwright Yoon-soo, provided TVing, released special posters, and a new teaser video showing the students will face a new threat.
Based on the hit webtoon of the same name, Duty After School Pt. 2 is the continuation of the story of high school students being put in front of the world’s first war with extraterrestrial forces. As mysterious alien spheres start invading planet Earth, the Department of Defense offers college admission incentives for students to join the reserved forces, eventually becoming frontline fighters.
In the trailer, students who’ve become hardened by battle and create a strong force soon face a crisis as they face a strange creature in an unfamiliar prison.

Duty after School Pt. 2, episodes 7-10, will premiere on TVing on April 21, 2023.
Source: Soompi