The Grim Reincarnate

You'd think that the Grim Reaper herself would be exempt from reincarnation... and yet, here we are.
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In a strange land where magic reigns supreme, reincarnation is a well-known occurrence which transpires three times every millennium and granted only to those who have achieved greatness in their past lives.

After countless centuries of reaping souls since the beginning of time, the ex-scythe wielder wishes only to live out a simple life, free of expectations and responsibilities. The only was to achieve this? Keep her identity and powers secret, of course! After all, how hard could it be?