Guys I forgot the title of the lightnovel and need your help the mc and his father who was a divine king were chased and killed for the divine book his father had and was transmigrated to another world with the book by his father. In the other world he was an orphan who is engaged to the Dutch daughter and is the son of the queen of the kingdom (which he doesn't know in the starting).the kingdom royalty were the only metal users. His maid from his previous life kills heralded and also gets transmigrated to the same world. I am sorry I only remember this much only, so if anyone knows the title of the book please tell me