Maison Izumo Flower War - S1.E6

Tsukiumi attacks Minato to prove that she doesn't need an Ashikabi, but she cannot release her full power. Hibiki and Hikari show her the power of fully winged Sekirei, but Minato shields her from the attack. Finally understanding Minato's feelings, Tsukiumi becomes his newest Sekirei, leading to a comical homecoming.