After Riser's defeat, Koneko is left questioning her worth to the Peerage. While doing a Devil's contract, she meets a mysterious and, unknown to her, otherworldly mentor. As her preconceived notions of chakra and Senjutsu are shattered, she must now balance her new training, her duties, and threats to Kuoh and the world; while she slowly falls in love with a chivalrous pervert.

'Hero of the Sword' compared to Hero of the Sword. A Nameless Hero brought into a world facing catastrophe. Shirou summoned as an add-on to the 4 heroes, yet who was the real hero? A Sword? A Spear? A Bow? A Shield? Well, Shirou could do that too.