บทเรียนรักต้องห้าม

In a vampire-ruled world, human Vera tests as an unprecedented S-rank bloodline but is sold by her father. Vampire lord Sebastian buys her at auction—and is her professor and headmaster. They fall in forbidden love. His rival Lucian exposes and frames her; Sebastian clears her name and becomes President. In the finale, Vera finds herself pregnant—impossible for a human and vampire.