Modern-day high school student Saburou has no interest in history. He's sent back in time to the Warring States period, where he meets Nobunaga Oda, who turns out to look just like him. Brilliant but shy, Nobunaga asks Saburou to take his place.
If Nobunaga dies, it changes 
all that history I learned.
إذا مات نوبوناغا، كلُ ما تعلمّتُه في التاريخ سيتغيّر
Wenn Nobunaga stirbt, ändert das die 
ganze Geschichte, die ich gelernt habe!
Si Nobunaga muere, cambiarás 
la historia que conozco.
Si Nobunaga muere, 
cambiarás la historia que conozco.
Se o Nobunaga morrer, vai mudar 
toda a história que eu aprendi.