Read manga: Take Dake Dake! - Takedakei Gentei

manga
Summary:

Bushido Academy gathers people who are descendants of the military commanders from the Warring States Period to fight for leadership. As Takeda Shingen's descendant, Takeda Tetsuro is forced to join Bushido Academy. Joining him is Sanada Rieko, who is descended from Sanada Masayuki, a loyal retainer of Takeda. Can they unify everyone together in a school where various warlord students battle for control? The curtain rises on this magnificent picture scroll featuring a Warring States themed academy.