Unable to sleep, middle schooler Ko Yamori wanders the city streets at night and encounters Nazuna Nanakusa, a quirky vampire who changes his perspective on the dark. This fateful meeting sparks a nocturnal journey of blood, romance, and self-discovery.

Dissatisfied with his daily life, Ko finds solace in the freedom of the night. His peaceful wanderings take a strange turn when he meets Nazuna, a flirtatious vampire who offers him shelter and a bite of her world.

To become a vampire himself, Ko must do the impossible: fall in love with his undead companion. However, the arrival of a childhood friend complicates his nocturnal adventures and tests his budding supernatural relationships.

The complete Call of the Night manga follows Ko Yamori as he navigates insomnia, vampires, and romance in the city after dark.

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