Anime Crossover: Starting with the Nuclear Explosion Sword Immortal

Shirou, who had only wanted a peaceful and easy life, was unexpectedly struck by a series of events: system awakening, blank class cards, connection to the Throne of Heroes, Servant summoning, and stepping into the Holy Grail War—thus beginning his irreversible path to becoming a nuclear-powered swordsman! The lingering scent of witches, Unlimited Blade Works, the Feast of Flames, the Fourth Progenitor, the covetousness of evil gods, the frenzied feast of god-slaying… bonds that should never have been forged begin to appear…