Oda Nobuna no Yabou - 1x07 - 信奈上洛- Followmy.tv

Kyoto, the capital city of the Ashikaga shoguns, is attacked by a group of conspirators called The Miyoshi Three; Sakihisa Konoe, Soukyuu Tsuda and Gousei Shoukakuin. Yoshiharu is stumped when he learns, unlike his timeline's history, Shogun Yoshiteru Ashikaga survived the attack at Kyoto and has fled Japan with Yoshiaki, his youngest sibling who is a girl in this timeline. Without an Ashikaga clan member, Nobuna cannot legitimately claim Kyoto but Mitsuhide suggests they make Yoshimoto the new Shogun as she is a relative of the Ashikagas. Nagamasa returns to Owari, begging Nobuna to marry him since he cannot return home until he does. After promising an alliance with no strings attached, Nobuna gives away her sister "Oichi" to be Nagamasa's bride except "Oichi" is Nobusumi who is forced to dress up as a girl.