Nobunaga the Fool S01 E04 The Magician

Himiko of Yamatai has averted a crisis by giving Nobunaga a Regalia. However, in return, she demands that they wed. Nobunaga decides that an alliance with Yamatai will strengthen the Oda, and accepts. Meanwhile, as da Vinci plans their betrothal ceremony, Ranmaru seeks to confirm her prophecy by determining whether Nobunaga is the Savior-King.