Youjuu Kyoushitsu

Set in a distant future where Earth has been ravaged by an ecological catastrophe, our story sees the return of sinister beings known as Demon Beasts. Driven away 100 million years ago, they now infiltrate our world through unsuspecting human females, breeding with them to create hybrid offspring that will pave the way for their malicious invasion. In this perilous reality, a young woman named Kayo finds herself ensnared in an unholy union - and it’s up to Muneto, a dedicated 19-year-old Interplanetary Mutual Observation Agent, to rescue her from this terrifying ordeal. Her encounter with a lust-driven Demon Beast will leave you gasping for breath in anticipation of what lies ahead!