Toaru Majutsu no Index - Volume 19, Epilogue: They Will Not Let It End a Tragedy. Brave_in_Hand.

Take over a《Homeworld》Mothership and then travel to the world of《Star Wars》？Tang Xiao: “ This world is so dangerous, Mom, I'm going home. ”Wait a minute, the Mothership database actually has various science fiction game technologies, 《 Sins of a Solar Empire 》, 《 Halo 》, 《 EVE 》, 《 Starcraft 》, 《 Stellaris 》 ？？And there are still Jim Raynor, Master Chief, and Archbishop Artanis sleeping in the freezer?Tang Xiao: “Humph! They will all bow down at my feet!!”The Fourth Calamity… ah no, long live the Fourth Empire!Official TranslationThis is the Official Translation of “The Empire Begins With The Fourth Scourge” by Author 镜大人 also known as Kagami. This Translation has the Author's full endorsement and is supported on WebNovel (and now Space Battles Forurms). The Chinese version by Kagami is linked below!

Two years ago, the mere fifteen-year-old scion of the Lin family, in front of the colossal behemoth that is the Murong clan, made a vow!Two years later, no one knows what he has gone through, but from the moment of his return, he radiates a brilliance that seems to compete with heaven and earth!(Note: The protagonist of this book is very aloof, cold, and passionate. Those who like to read about a military king's ambiguous romances and flirts, please bypass this one.)

Once she transmigrated over, Li Haitang, an elite female doctor from the big city, is demoted to a pitiful little cabbage whose parents have both died. She is surrounded by extreme jackals, wolves, tigers and panthers family and relatives. What? She is sold to a half-dead body that is going to be buried in the ground. Has she been sold to an old man with a heavy taste? The only way to escape from the arranged marriage is to pack a bundle wrapped in a cloth! Who would have thought that on the way to the wedding, she meets a wild man who is feared by everyone in the village? The wild man has three treasures, he is hardworking, spoils his wife and has good stamina! His pectoral muscles, abs and mermaid’s line are all there.

- Description from Novelupdates

Lin Chen was persecuted by his childhood sweetheart and accidentally obtained an ancient legacy. From then on, he embarked on a path against the heavens!“I am a sovereign! Those who insult me will be killed, those who obstruct me will die!”