Enjo Kouhai – Episode 5 (RAW)

Hakobune Academy’s interspecies “Aid” mating initiative continues to expand with the arrival of Eriyo, a nationally adored member of a top mermaid idol group. With her delicate, ethereal appearance, translucent voice, and bashful personality, she quickly wins over classmates and teachers alike. Beneath her sweet demeanor lies a dire secret: due to mermaid biology, her body is on the verge of irreversible masculinization unless she successfully conceives through human-demi-human intercourse.

Eriyo confesses to her homeroom teacher that she transferred specifically to seek his “cooperation” in preventing this fate. Her body—still in transition with budding breasts, slender hips, and an innocent, youthful charm—presses close as she shyly begs for his help. The teacher grapples with intense guilt over the taboo of aiding his own student, yet her mesmerizing mermaid song seeps into his mind, clouding judgment and amplifying desire. What follows are tender yet passionate encounters filled with melodic moans, gentle licking, sucking, and deep creampie breeding as Eriyo’s pure voice turns lewd and desperate.

This latest installment from At Home Shuka’s (たくのみ) blockbuster doujin, animated by PoROre/Majin, showcases original voice acting blending adorable shyness with erotic gasps, unique mermaid traits like hypnotic singing and aquatic sensuality, and heartfelt interspecies taboo. A perfect addition for fans of shy/innocent heroines, idol themes, transformation elements, breeding, and fantasy romance.