burning red | taegyu ✔️

Because a mated vampire can only drink their human partner's blood, their lifespan gets tied to the human's. Once the human dies, the vampire cannot take in any other blood and eventually either dies of starvation or by poisoning from drinking other blood.

By mating with Taehyun, Beomgyu had essentially given away his immortality and now tied himself on the most intimate level a vampire could bond with another. He was literally dependent on Taehyun for survival now.

Of course Beomgyu was miserably certain that that thought must make Taehyun anxious and maybe even unhappy. Even so, any seed of doubt and regret in him was squashed immediately; he did what he had to to save Taehyun's life. And he would gladly do it again if he went back in time.

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Or, the one where childhood best friends Beomgyu and Taehyun who have drifted apart, end up together again when an accident leaves Taehyun on the edge of death's door and the only thing that can save him is for Beomgyu to mate him.