In an era where one in twenty people awakens to a "special ability," Hiroto Takigami is a weak ability user who can only communicate with spirits. Despite his harmless power, he’s fiercely hated by his adoptive older sister, Rei, the strongest ability user alive. Upon graduating from the Ability User Training Institution and gaining freedom to wield his power, Hiroto is brutally killed by Rei for reasons unknown. Left with just one year to live, Hiroto despairs—until an unexpected spirit appears before him, revealing the shocking truth behind his abilities. What unfolds is a groundbreaking “body-possession” supernatural battle, where secrets, revenge, and survival collide in an unpredictable fight for redemption and justice!