Before beginning his mission into Soul Society to rescue Rukia Kuchiki, Kisuke Urahara takes Ichigo Kurosaki to a huge secret training ground beneath the Urahara Shop, intended to resemble the Sōkyoku Hill training ground. Here, over a period of several days, Urahara helps Ichigo regain his lost Shinigami powers and teaches him the basic techniques of Shinigami combat. Ichigo's partial transformation into a Hollow also takes place here, and Urahara opens the Senkaimon into Soul Society from this room.