Tada No Murabito No Boku Ga, Sanbyakunen Mae No Boukun Ouji Ni Tensei Shiteshimaimashita ~ Zensei No Chishiki De Ansatsu Flag O Kaihi Shite, Odayaka Ni Ikinokorimasu

Prince Rudolf gained knowledge of the future 300 years from now during a near-death experience. He uses his wits to change the future in which he will be assassinated as a tyrant prince!