User blog comment:IamJakuhoRaikoben/Chapter 335: The Time of Life, Review./@comment-5580383-20130616021805/@comment-7418318-20130616071047

The only two "ghosts" that have remained in or returned to the living world so far were exceptionally powerfull wizards (Mavis and Robault, who build Nirvana), so I don't think it's easy to return to/remain in the living world after death without someone else's help (like Chico=C=Hammitt's and maybe Bixlow's magic).