Reincarnations : A Love beyond Death and Time

Death made itself a son, and watched as it's son grew only to be enslaved by a witch. Thou her heart changes and she started to care for him and in the end, she lays down her life for him. As a gift to her, Death reincarnates their souls again and again, to meet and fall in love each is last time, things are so much the same as they are different. Modern!Wizards, 2-shot!