Honestly i don't get but i love it~

And i think they exist in the same world, maybe in some country they uphold Blood moon judgement and it seems family doesn't exist there but it still strange while the girl's world shows like how society in real world be like but there is a term called family.

And their FUTURE self is the people who survive by their own, i can guess how the girl would survive but our mc? I guess he got the help of that 222 and survive?