Title: Youjuu Kyoushitsu
Japanese Title: 妖獣教室
Synonyms: Demon Beast Invasion
Episodes: 6
Released Date: May 25, 1990 till May 27, 1994
100 million years ago, an ecological disaster drove the Demon Beasts from our world. Now they must breed with human females to create a new, hybrid creature who will clear the way for an invading horde. When 19-year-old Kayo is raped by a possessed lover, it’s up to 19-year-old Interplanetary Mutual Observation Agent Muneto to save her from the terrifying creature to which she gives birth: A mutant, lust-driven Demon Beast!