Being the only two heroes remaining, Wakaba and Takashima fight against the remaining Vertex, putting their bodies at risk by using their trump cards. When Takashima's trump card runs out, leaving her critically injured, her determination to stop a Vertex from getting through awakens the power of Mankai inside of her and destroys it before succumbing to her injuries. Back in the present, as Yuna and the others reach the end of Wakaba's Hero Annals, Sonoko also finds a gardening hoe among her belongings...