I, Yan Ye, Am Going to Marry Tokiomi's Daughter

In 1985, the Phantom Troupe had yet to form. In 1985, Josuke Higashikata had just been born. In 1985, the Four Heavenly Kings of Gourmet were still unknown. In 1985, Kiritsugu had yet to enter the Einzbern household. Nobody knew that three years later, a group of “players” would descend upon this world. Nobody knew that four years later, a vampire would try to rule everything. Nobody knew that ten years later, a war would break out in Fuyuki City. Nobody knew that thirteen years later, the entire human world would be plunged into an unprecedented disaster. And right at this moment, a player from seventeen years in the future transmigrates to this era, with only one goal: “I, Matou Kariya, am going to marry Tokiomi's daughter, damn it!” Huh, wait, a game forum? Fine, I just have to survive this horde of locusts running wild...