I vaguely remember there was a chapter after the end where they were patrolling the area t...

I vaguely remember there was a chapter after the end where they were patrolling the area then Hyun ended up inside a cinema. In there Hyun saw Hyuk, and Hyuk was watching the last episode of Maria chuchuness. Hyun was with the survivors and Hyuk was with the monsters (i think?), and inside the cinema they were talking like, next time we see each other, we’ll be on different side chuchuness. Did that really happened or was I hallucinating? Please confirm for anyone rereading this if this really happened