Momo is a shinigami, or Grim Reaper, serving as the messenger of death. Contrary to the terrifying image of a dark-cloaked figure wielding a sickle, she is clad in shining white—her gown, sickle, and hair alike. Alongside a black cat named Daniel, Momo undertakes the mission of guiding human souls to the Great Beyond. She appears to those on the verge of death to ease their mortal fears, yet she also offers comfort to those enduring the anguish of losing loved ones in tragedies.