Currently available on 2 streaming services.

Streaming, rent, or buy Humanity Has Declined – Season 1:

Currently you are able to watch "Humanity Has Declined - Season 1" streaming on HiDive or buy it as download on Amazon Video.

Cast

Mai Nakahara
Watashi (voice)
Jun Fukuyama
Joshu-san (voice)
Unsho Ishizuka
Sofu (voice)
Miyuki Sawashiro
Y (voice)
Yumiko Kobayashi
Yousei-san (voice)