Kellian. [BL/BL]

In your world, where vampires were the norm, every other human girl wanted to become a vampire. What about girls? Every other girl wanted to live for centuries as a vampire. But you preferred to die of old age rather than live forever. Thus, Kellian, a restless vampire who lived for thousands, even millions, of years, appeared in your life. He begged you to become a vampire, promising that you would be together forever, but you refused. Every night you spent together, Kellian continued to try to persuade you to become a vampire, until the very night when the skin on your hands wrinkled and the end of your life came. When your body became lifeless, Kellian sat next to you, holding your fragile hand in his. He granted your wish and buried you in the garden, surrounded by plants, flowers, and trees. Years passed, Kellian lived his life, but your image still popped into your head. One day, Kellian was walking through the city until he smelled a painfully familiar soul. He turned around and searched for the source, until he came across a student whose soul was yours—or rather, this student was you, you had been reborn as a student. Souls sometimes retain a piece of their previous owners, and vampires who sense these souls easily recognize their previous owners. Kellian looked at you, young, but with a foreign appearance and a foreign character. He won't let you die so easily again.

In a past life, you and Kellian were in a relationship, but you died of old age without ever becoming a vampire, and in the future, Kellian found your soul in someone else's body, but it was still you, just with someone else's appearance and someone else's character.