https://www.novelupdates.com/series/bite-your-fingertips/

Description [Edit]

Chu Yu was good looking and had good family background, and despite being male, with irredeemable grades, it didn't prevent him from being elected the Jianing Private School flower with highest number of votes.

The whole school knows that Chu Yu is on bad terms with the top student, a guy who has won various awards, and is quiet, cold and restrained, not caring about anyone.

Until one day, after school, someone saw Chu Yu amongst the trees behind the school, pulling the sleeves of the study god's white shirt, and speaking pitifully, "Lu Shi, give me a bite, I'll be gentle."

Lu Shi put his finger in Chu Yu's mouth, "It doesn't matter if it hurts."

–

Chu Yu was horrified to find that he had awakened a strange bloodline overnight, and needed to suck a drop or two of blood every day to survive. But everyone's blood was bitter and smelly, except...Lu Shi.

—— When the two kissed, Lu Shi's lips broke, and blood trickled out. It was fragrant and sweet. Chu Yu couldn't help licking Lu Shi's lips repeatedly.

Lu Shi supported Chu Yu's lower back and chuckled, "So greedy, huh?"