Anyone have a summary for this?

When a deadly zombie virus ravages Seoul, South Korea is forced to cede the peninsula. The story follows a former military captain and formidable bodyguard who is hired to protect a spoiled chaebol heir (the "CEO"). Together, they must navigate this apocalyptic landscape, moving from a strictly professional relationship to a deep connection as they fight to survive the chaos ٩(๑❛ᴗ❛๑)۶

Thank you!