In her letter to the cat spirit, Tsubasa reveals that just like her, Kako is another apparition sired by her repressed feelings, this time of jealousy and asks her to return both to her heart, as she is finally determined to shoulder all of her negative feelings no matter how it will change herself. As Kako is about to burn Hitagi's apartment, Tsubasa appears to confront it. Despite having no chance to defeat Kako, Tsubasa manages to stall it long enough to Koyomi to appear and defeat it with Heartspan...