Call of the Night — Characters & Cast

Originally motivated by an impulsive desire to abandon human society and become a vampire; evolves into a profound desire to protect Nazuna's happiness and forge a bond on equal terms.

Starting as a socially withdrawn, emotionally detached middle schooler who feels hollow during daylight hours, Kou chooses to step outside ordinary society. As he engages with vampire politics and human investigators, he matures from a passive escapist into a decisive, fiercely loyal protector. His unique condition—becoming a half-vampire capable of manifesting supernatural combat capabilities while retaining his humanity—reflects his role as a living bridge between two species.

To enjoy the night on her own terms, secure delicious blood, and avoid emotional entanglements; evolves into confronting her origins and admitting her genuine romantic feelings for Kou.

Initially presented as a crude, foul-mouthed nocturnal roamer who relishes dirty jokes yet blushes furiously at sincere romantic affection. Nazuna's carefree demeanor masks profound loneliness and total amnesia regarding her human origins and birth. Through her relationship with Kou, she confronts her buried past, reclaims her agency within vampire society, and acknowledges her terror of outliving those she loves.

To annihilate vampires to avenge her stolen past; shifts toward resolving unresolved personal grief and preventing Kou from making irreversible mistakes.

Introduced as an enigmatic, cynical private detective tracking vampires, Anko initially serves as an antagonistic force driven by bitter childhood trauma caused by a vampire destroying her family. As she collides with Kou and Nazuna, her absolute hatred softens into a complex, tragic empathy, leading her to become an invaluable mentor and ally who helps Kou navigate the lethal intricacies of the vampire underground.

To preserve her connection with Kou and ensure his safety while finding small pockets of nocturnal freedom to cope with school pressure.

Kou’s childhood friend who still attends school, Akira is weighed down by the monotony of academic routine. Rather than judging Kou for ditching school, she joins him during predawn hours, becoming the indispensable human touchstone who validates Kou's emotional journey without losing herself to the night.

To escape the suffocation of familial expectations and be loved unconditionally, regardless of the mortal cost.

Kou and Akira's popular, charismatic childhood friend who appears to have a perfect daylight life. Beneath the polished surface, Mahiru harbors severe familial neglect and isolation, making him an easy target for the charismatic vampire Kiku Hoshimi. His tragic trajectory serves as a direct mirror to Kou: while Kou seeks life and understanding through the night, Mahiru’s desperate yearning for love spirals into self-destruction.