Koki Koyasu

Despite the constant threat of invasion by neighboring countries who covet Hortensia’s fertile lands, Hortensia has long managed to avoid the maelstrom of war thanks to its two main territories, the principalities of Olivier and Camelia, serving as its sword and shield. But on December 5, 767, Camelia suddenly rises in revolt against Hortensia...

Nanakusa is a vampire. That's okay with human Ko. He wants to be one too. But transformation doesn't come that easily... When Nazuna invites Ko to spend the night at her place in an abandoned building, he's stoked! But then he awakens to kisses on his neck with a little too much bite to them... Is it just the delicious taste of his blood that makes her meet him night after night for late-night adventures, conversation and...naps? Or something else? Then, when a cute girl from Yamori's past shows up and competes for his attention, his budding relationship with the undead is put to the test!

First year high school student and occultist, Nene Yashiro summons "Hanako-san of the Toilet" to grant her romantic wishes. She ends up Hanako's spiritual assistant, helping him destroy supernatural beings and change rumors to balance the spirit and human worlds. Along the way, Nene learns about her connection to the spirit world and the dark secrets regarding Hanako's past.

Natsuki Subaru, an ordinary high school student, is on his way home from the convenience store when he finds himself transported to another world. As he's lost and confused in a new world where he doesn't even know left from right, the only person to reach out to him was a beautiful girl with silver hair. Determined to repay her somehow for saving him from his own despair, Subaru agrees to help the girl find something she's looking for.

Ninth grader Yotsuya Yuusuke is practical, friendless, and not active in any clubs. Then one day, he and two female classmates are suddenly sent to another world where they must work together to battle for their lives. Yotsuya is a lone wolf and has always lived his life according to his wants, but how will that work out now that he’s supposed to be a hero?!