Tony-wa Hamkke

Jin-Ho Kim has survived the mysterious diseases that wiped out most of the population, including his parents, but struggles to find purpose in surviving one day at a time. Upon unexpectedly adopting a stray dog, Tony, Jin-Ho slowly begins to discover what it means to care and be responsible for another being, as he stumbles through being a first-time dog owner, and finding renewed meaning in this bleak world.
(Source: WEBTOONS, edited)
Note: Chapter count includes a prologue chapter.