Vampire Knight: Ice Blue no Tsumi

Under the fading light of twilight, a daring Day Class student named Fuka crosses into the most forbidden territory on campus: the Moon Dormitory, home to the Night Class. Though these elite vampire aristocrats rarely spare a glance for ordinary humans, they unexpectedly welcome her with warmth and even invite her to return. Her presence sparks whispers among the immortal students, but those who fall under the spell of such darkness soon discover that there is no turning back from its seductive pull. Long before his arrival at Cross Academy, young Zero was born into a prestigious lineage of vampire hunters, destined to carry on his ancestors' dangerous legacy. Sheltered by the familiar routines of training under his master, he believed he understood the path laid out before him. However, the sudden appearance of a senior disciple shatters that illusion, exposing the boy to the brutal truths of a hunter's existence. This singular, defining experience forever alters Zero’s childhood, stripping away his innocence and leaving him with a cold, hardened gaze toward the world.