Mitsuhide is an extremely poor ‘student ronin’ who gets by via part-time jobs. One day, he receives an enrollment letter to Sengoku Gakuen and readily accepts it. On his first day, a girl named Nobunaga points her sword at him: “How dare you show your face to me, I’m gonna cut your head off!”. Fearful for his life, he explains that he’s not the real Akechi Mitsuhide, but that their names are just the same by coincidence. One by one, he meets girls with the name of other famous generals, such as Takeda Shingen and Uesugi Kenshin, who all mistaken him for the actual Mitsuhide.