This is makes me remember shoujo shuumatsu, the mc was the last human on earth, then finally die for nothing because of starving, such lonely and sad story
"ah, they not die, dunno?"
Hmm, a bit of GLT and Made in Abyss and a long hamster.
It also seems more optimistic than the other two, and I like the MC
also the hamster's name reminds me so much of YAGOO