Oda Nobunaga to Iu Nazo no Shokugyou ga Mahou Kenshi yori Cheat Datta node, Oukoku wo Tsukuru Koto ni Shimashita

The greatest conqueror history's never seen! At last, the time has come for the gods to bestow young Alsrod Nayvil with his official profession. As a minor feudal lord, Alsrod hopes he'll get a job impressive enough to let him step out of his older brother's shadow. However, he ends up with an unheard-of job called..."Oda Nobunaga?!" It's not long before Alsrod learns the Oda Nobunaga entity involved is a famous conqueror from another world who will forever change his destiny! Now the young ruler has his sights set on greater endeavors?—namely, taking over the entire kingdom! (Source: Yen Press)