I, Who Only Know How to Fight, Was Summoned by Illya!

(I just opened the book, so I don't know if the rating will go up! Since everyone is posting it this way, I'll post it this way too!) Curse+Fate [Fate: Fate/stay night (ongoing)] + [Single heroine] + [Illya] + [Dou Nuo element] At the decisive battle in Shinjuku where Kuze was dragged away to participate in the seventh reincarnation of Dou Nuo He once again failed and was cut in half by Su Nuo's loan space. But he did not return to the system space as usual. During the summoning ceremony of the Einzbern family, what appeared was not the invincible Hercules, but a servant from another world. The figure that appeared on the altar looked at the young girl with silver hair and red eyes. "I remember that this is how it should be pronounced." The figure murmured to himself, then bowed slightly "Servant - Caster, here in compliance with the summons. Excuse me, are you my Master?" "Caster is the strongest!" [Magical Girl Illya Development Plan] starts!