Yosuke Nitta had been searching for his best friend who disappeared a year ago.

Then, a girl appeared before him.

To a bewildered Yosuke, she reveals:

"I'm that best friend. I was summoned to another world a year ago and have been fighting as a hero."

Adding, "And I've been turned into a vampire girl."

This is the story of a boy who strives to treat his best friend just the same, even after they've become something inhuman, and the best friend who harbors special feelings for him.

*Also posted on Tsugikuru and Kakuyomu.*