Sixteen-year-old Felix Carver carries the ghosts of magicians in his blood. He can communicate with them and use the magical abilities they wielded against monsters when they were alive. His newfound power would be pretty cool, if the ghosts in question weren't his family and the man who killed them.
Death doesn't stop Felix's siblings from finding new ways to annoy him from beyond the grave, nor his parents from doing their best to protect him from the dangerous side of his new life. Felix learns that his family belonged to an organization of magicians called the Bright Guardians, while their killer was a part of the Guardian Uprising that tried to overthrow the organization eight years earlier. The Bright Guardians take Felix in, hoping they can train him to fight monsters and control the ghosts living inside of him.
Felix barely understands the magical world his family kept secret from him, but he does make friends with other odd cases at the Bright Academy. Troublemaker Arisa Tamura is struggling to control her ability to animate objects while under the influence of cursed bracelets, while the smart but reserved Mason Briggs is a witch who was transformed into a demon as a last resort to save his life.