Rem is Misa's Shinigami. Rem is a mummy type shinigami who looks like a vampire aswell as a mummy. Rem gave Misa the Deathnote by choice because someone Rem loved also loved Misa and when he saved her life and died because the Shinigami law says you can not do that or you will parish. Rem began to love Misa and tried to protect her when she met Light Yagami (aka kira) Rem gaver her own life to save Misa by writing L's and Watari's name down in the note book and killed them causing her to turn to sand.
