Call of the Night manga volume 15 features story and art by Kotoyama.

Vampire Haruka turns out to be a menace when he attacks one of Ko’s classmates and asks Nazuna on a date. Which will tick off Ko more? Meanwhile, Mahiru and Kiku prepare for the ultimate test of their love. Is it really possible for vampires to turn human again? Plus, school trip group bathing!

Call of the Night manga volume 16 features story and art by Kotoyama.

While Ko does his best to repair his friendship with Mahiru, Mahiru comes to a momentous decision regarding his romantic relationship with vampire Kiku. But first he opens his heart to Nazuna about his troubled relationship with his family. And then Ko and Kyoko finally confront Kiku…

Call of the Night manga volume 17 features story and art by Kotoyama.

Ko's school trip is full of surprises as he forges connections with old and new friends. Kyoko pursues a lead regarding the truth about her father. And Mahiru and Kiku take the final steps in their relationship as human and vampire… leaving Ko with a lot to process.