Synopsis: I Have No Choice But to Become the Universal Progenitor's Mate!

This is a story about Earth in the near future, a future where aliens have become commonplace in everyday life. And university student Shiori's gotten on one such alien's radar... Little did she know that once you try alien tentacles, it's hard to go back... [Caution] - Alien x human girl + clinginess and a happy ending! - A simple erotic manga without much depth. - Contains some hardcode content such as tentacles, womb penetration, anal, cumflation, egg laying, brainwashing, etc. - Contains expressions commonly found in male audience oriented works such as cross-section (seX-ray) views and hardcore SFX (heart marks, lewd moaning, etc.)