GHNU-43 Futanari Heroine: Pretty Guardian Sailor Mermaid, Defiled and Overpowered by an Untainted Manhood

Sailor Mermaid, a beautiful warrior, battles the monsters sent by the witch Shazuru. Sailor Mermaid overwhelms the creatures, but one of the enemy’s attacks accidentally strikes her lower abdomen. Sailor Mermaid suffers far more pain than expected. It didn’t seem to have much force… Shazuru becomes suspicious of her reaction and realizes Sailor Mermaid’s secret.

A secret that must never be known… In addition to her female anatomy, there is another prominent feature in her lower abdomen. Once Shazuru notices this, she decides to exploit Sailor Mermaid’s weakness and schemes to capture her.

What fate awaits Sailor Mermaid…?! [BAD END]