The story revolves around Song Hee, a college student often labeled as "ugly" due to her appearance, characterized by oversized glasses and a messy ponytail. One day, she encounters Lee Jeong, a handsome and mysterious boy who harbors a dark secret—he's a vampire.

Despite Lee Jeong's initial cruelty towards her, including bullying and a secret romantic encounter, Song Hee finds herself drawn to him. As their relationship develops, Song Hee undergoes a transformation, both physically and emotionally, fueled by a newfound determination to break free from societal judgments.

Lee Jeong, too, experiences a change of heart, regretting his past actions and falling deeply in love with Song Hee. Their love story faces challenges, including jealousy from Lee Jeong's ex-girlfriend, Yoo Jin, and a dangerous encounter with a fellow student, Jaewook, whose obsession with Song Hee leads to violence.

Through it all, Song Hee and Lee Jeong's bond grows stronger, culminating in their wedding and the start of a new life together. The narrative highlights themes of self-discovery, redemption, and the power of love to overcome adversity.

As Song Hee and Lee Jeong navigate the complexities of their relationship, they learn to embrace each other's flaws and forge a deep connection built on trust and understanding. .