Transmigrated Uchiha, adopted by the Second Hokage, became the strongest in the ninja world

In the fifth year of Konoha, under the unreasonable demand of his elder brother Hashirama Senju, Tobirama is forced to adopt you—a young Uchiha. Little does he know, you will change his life forever. You transmigrate into an Uchiha, only to be taken in by the so-called “evil” Tobirama Senju. Fortunately, the old man doesn’t seem to do anything too extreme… At night, in the laboratory. Tobirama stares at your unconscious body on the operating table, his eyes gleaming: “An Uchiha brat… the perfect experimental subject!” …… Years later, you accidentally discover the secret of the laboratory… “Old man, I’ve been your free cook for so many years—this is how you treat me?!”