Ultimate Shut-in

Kill monsters, save your neighbors, and expand your domain, all from the comfort of your couch. When his city becomes infested with monsters, Jae-Hyeon discovers an ability that makes him the absolute master of his apartment building. But his ability comes with a catch -- he cannot leave his apartment. Now, he must arm his neighbors and lead them beyond their building to survive the post-apocalyptic world they find themselves in.

(Source: WEBTOONS)