Love Letter - S1.E5

Saburou tries to take Mino by force and fails because of Inabayama castle. He's rejoined by Matsudaira Takechiyo the womanizer. Saburou is in need of a stratagem to scare Mino's people: Tokichirou comes up with the idea of building a fortress in one night. Saburou has also been sending letters to Mino's main retainers who then take Inabayama and side with Owari. Matsudaira changes his name to Tokugawa Ieyasu