Type-Moon, the Heroic Spirit I Summoned is Myself

Synopsis: Lucian: I once prayed to the entire Throne of Heroes, but in the end, the only one who answered was myself! Lucian has crossed over into another world, becoming a foreign exchange student residing with the Matou family, where he is the older brother of Matou Sakura and Matou Shinji. After recovering from a high fever, he regains his memories from before his crossover. Fortunately, at that moment, his system, "Book of Heroic Spirit Development," awakens! This system allows him to travel through different time periods via relics and simulate heroic events! Thus, he journeys through the worlds of heroes across various eras, crafting his own legendary tales. He is the samurai who severed all ties during the end of the shogunate. He is the demon slayer from the Heian period. He is the greatest enemy of the Knights of the Round Table. He is the one who brings the twilight of the gods, And he is also the favored one of the gods... "More chapters:available on Patreon!:https://shorturl.at/Zg7f9