After 17 years of learning Ukiha Divine Wind Style Swordplay in the mountains, Yoichi Karusuma is ordered to experience life in the city with the Ikarugas by his father, as he has nothing more to teach him. After he arrives in the city, Yoichi is ridiculed by Washizu for his samurai clothes and easily defeats him. The Ikarugas wait in the city to pick up Yoichi. Later in the day, Yoichi chases after a thief, causing mayhem in a shopping centre. During his pursuit, Yoichi unknowingly encounters the Ikarugas in embarrassing situations. After he successfully stops the thief, he returns a lost Kagome to Ibuki. Outside the shopping centre, Ibuki asks Yoichi if he is Yoichi. He agrees. The police arrest Yoichi for causing mayhem but releases him afterwards. Ibuki takes Yoichi to her dojo and introduces him to her sisters

After Ibuki reads Yoichi's lewd haiku about her, she sends him flying into Ayame's room. Ibuki and Ayame takes Yoichi to Yokko Private High School. Coincidentally, he is in the same class as Washizu and Ibuki. When Ibuki noticed Yoichi being asked questions by female students she takes him out in the hall and beats him once again. Washizu, wanting to redeem his reputation, challenges Yoichi to a match, with most of the school watching. Yoichi easily defeats him without weapons but catches a fever afterwards. The academic rivalry between Ayame and Ibuki is revealed. Later, Yoichi and Ibuki apologise to each other for their actions earlier in the day, to which Ayame's dismay.

Angela and Tsubasa arrive in the city to defeat Yoichi at the request of a man who is willing to pay them money for the revival of their martial arts school. Tsubasa, a clumsy and shy girl, transfers to Ibuki and Yoichi's class. When Yoichi comments on Tsusaba's cuteness, Ibuki quickly beats him. It is revealed that Tsubame used to live in the mountains, learning martial arts, without any luxury. After school, Angela strips Tsubasa's clothes in front of Ibuki and Yoichi ti transforms Tsubasa into a skilled martial artist. Then, she attacks Yoichi. Washizu interrupts the fight, covers Tsubasa with his jacket and offers to fight Yoichi for her. This puts Tsubasa out of her stupor and she flees the scene, crying. Later, she tells Angela that she hates martial arts and Angela. Later, Angela meets Tsubasa on a road and they apologise to each other. The next day, Angela and Tsubasa appears to have started working at a restaurant, with Tsusaba making deliveries and Angela cooking.

Chihaya is having trouble finishing her manga in time. Meanwhile, Ibuki and Yoichi demonstrate sword fighting by sparing in front of Ibuki's four students and Ayame. Yoichi accidentally rips Ibuki's clothes across the chest with a sword swing. Ibuki punishes Yoichi and her students for seeing her in that state. Chihaya decides to interview Yoichi for her manga. Chihaya takes Yoichi into her room and shows him her manga. He praises her and then Chihaya seduces him. Ibuki walks into the room and she beats Yoichi up. Yoichi is chased by Ibuki for indecently touching her and crashes into Kagome, breaking her craft's project. Ibuki beats Yoichi up again for making Kagome cry. Ibuki orders Yoichi to bring Chihaya, who is at cram school, her notebook. Meanwhile, Yoichi overhears three boys talking about Chihaya behind her back and hints at ruining her work. Yoichi runs into the classroom and sees Chihaya with her torn manga draft. Chihaya pushes Yoichi out of the classroom and locks herself in and then cries about people putting down her work. Yoichi hears her crying and beats up the three boys.

Yoichi is invited to a date by Hinagata Yui. Ibuki, afraid that Yoichi will damage the Soaring Wind reputation, invites Yoichi to a practice date. She gets him to wear "normal" clothes during the date and takes him to a toy shop, where she shows keen interest in a plushie. Meanwhile, Ayame and her friends are buying clothes. They comment about Ayame's breast size to her chagrin. She sees Ibuki and Yoichi together and follows them. Ibuki and Yoichi goes bowling. They are secretly watched by Ayame, Chihaya and Kagome. Washizu and Torigaya see Ayame walking out of the bowling place and Washizu thinks about Ayame's possibility for being his sister-in-law. Meanwhile, while walking along a street, Ibuki attempts to take Yoichi's hand. He turns around and she shies away, tripping over a stone and they both fall into a fountain. Yoichi gives Ibuki the plushie she wants and thanks her for the practise date. Ibuki realizes that this is not a real date and rushes off to buy drinks, with Chihaya and Kagome hiding in bushes, watching them. Hinagata meets Yoichi near the fountain and Yoichi declines her request for a date. She fights him with a three section staff. Yoichi ruins Hinagata's uniform and she runs away. Meanwhile Ibuki is confronted by two men who criticise her for being with Yoichi. Yoichi, Chihaya and Kagome hear Ibuki's voice and rush to her aid to find that she has defeated her assailants.