彼女が異種族だった場合 ～教え子ヴァンパイアの甘トロ隷属調教～

A world where humans and the inhuman live together.
The protagonist, a brand-new teacher named Keiju Tsukimoto, takes charge of the class that the vampire girl Mira Kurojuji attends.

Mira is always alone in class, so Keiju starts to worry about her. As they talk every day,
Keiju starts to secretly harbor feelings for her, finding himself more and more drawn to her.

But he is a teacher, and she is his student. He laments the taboo nature of his love. But one day... something happens to him.