The story is extremely slow. Nothing actually happens. the length could be restricted to max 3 episodes even with fillers.
I think there was a vague concept of how unchecked human desires cause to become monsters (in various senses). But it was not touched upon, at all. There was close to no plot in the show. Everyone was just trying not to get killed. ML's backstory is touched upon a bit, we see the BEGINNING of a character arc towards the end of the show. The whole concept of why ML is special is because he literally has no thoughts, cause his mental health was already very bad, before the pandemic/acopolypse hit. So he doesnt have desires. So he cant turn into a monster. (like go crazy and kill other people)
And reading on the reviews of the following seasons, i gathered that s1 is actually one of the better seasons.
So im gonna stop here.
Theres nothing sweet about this home. It not even homely..
All the side characters (almost all) are killed. Even the ones with interesting backstories and possibilities of role in the story arc.