Riki and Rin awaken in the real world and recall that during their field trip, their bus got into an accident and Masato and Kengo used their own bodies to protect them. Despite being injured, they flee from the site of the accident to avoid being caught in the impending explosion, but after reaching a safe distance, Riki leaves Rin behind to return and attempt to help the others. However, he starts suffering another attack of narcolepsy and struggles to keep himself awake.
