The Reunion Express Arc is the tenth major story arc in Soul Eater. In Death City, a girl named Rachel Boyd finds herself possessed through the bodily invasion of a snake. Meanwhile, Stein determines to improve his students' fighting skills—if they could only learn to cooperate. Meanwhile, Death inspires concern in Sid Barrett, Mira Naigus, and Death the Kid with his goal of acquiring more demon tools, especially as Kid discovers his father has a history with some of the tools' creator, a sorcerer named Eibon.