The First Issue is composed of five short films created between 2016 and 2018: "The Designated Driver", "Let's Get Divorced", "Ambivalently Yours", " Sorry", and "The Congressman".

After moving into a new house, a young girl begins displaying strange and disturbing behavior until, one day, she disappears behind a closet. While the devastated father is left with no clue about his daughter's disappearance, an exorcist shows up to help.

Seung-yeon and Yeon-su breaks up before their 100 days anniversary. Yeon-su asks Seung-yeon to go to see her mother.

Kim Dok-ja, an ordinary man in his 20s, is the only reader of an obscure web novel titled "Three Ways to Survive the Apocalypse". After having read the last chapter, the novel suddenly becomes reality, and its omnipotent hero Yu Jung-hyeok appears before Kim. As the only person who knows how to survive in this world, Kim and his companions strive to save the world by writing his own, new ending.