The swordsman of darkness, Calibur turns out to be Kento's father! However, Touma is still unaware of this fact! Just then, a new swordsman appears before Touma! Ren Akamichi, a hot-headed individual compared to Touma, is significantly younger than him too! Ren, who seeks out Kento's recognition, discovers that Touma is his childhood friend and a fierce rivalry then emerges between the two! Meanwhile, Storius and Desast make their move upon Touma, while Rintaro and Mei encounter Zooous...!
