Mini anime of Shinmai Renkinjutsushi no Tenpo Keiei posted on the KADOKAWA Anime YouTube channel. Note: Includes Episode #0.

The fifth part of Fei Ren Zai.

After an asteroid destroys Earth, Moon You unintentionally becomes the last person in existence, or so he thinks. Stuck on a research facility on the moon, he struggles with being the last person alive. Little does he know that humankind is watching his every move from Earth. (Source: WEBTOONS)

Naoko-san is an alien from the planet Yuri, who is plotting to conquer the Earth by yurifying it. Misuzu is a junior high girl and is always troubled by Naoko-san, who lives on the roof of her house.