Kissuiso is visited by a management consultant named Takako Kawajiri, wanting to revitalize the inn by having the mistresses wear new outfits. However, attempts to dress Ohana and Nako up in new outfits fares badly with the customers. After Takako takes her leave, Ohana's uncle, Enishi Shijima, feels downhearted that his efforts to help the inn are always rejected by Sui. As Ohana feels she should do something to help improve business, the janitor, Denroku Sukegawa, takes her to a secret room filled with old uniforms made by Sui over the years. Ohana and Nako decide to give these a try, which proves to be a hit with the customers.

After spending the night at a hotel with Minko and Tōru, Ohana suggests that they kidnap Satsuki and force her to come to the Kissuisō, with Tōru only agreeing if they take Kōichi with them as well. Whilst Minko and Tōru visit Tokyo's various restaurants, Ohana runs into Igarashi, who tells her that she needs to decide what her feelings for Kōichi are. After she gets a call back from Kōichi, who tells her about how he visited the Kissuisō whilst Ohana was searching for Tōru at the time, Ohana feels guilty and decides not to take Kōichi back to the Kissuisō with her. After joining up with Minko and Tōru, the group goes to see Satsuki, who decides by herself to go to the Kissuisō. When Tōru's asks Satsuki about why she changed her mind, she replies that it's because Ohana reminded her of herself when she was younger.

As a school festival approaches, Ohana's class decides to do a Princess Café, assigning Yuina and Minko in key roles, whilst Nako's is put on the festival commitee. Hearing that Tōru is planning to visit, Minko decides to take her position in the cooking department seriously. However, Minko angers the other members of the food team when she rejects their request for rice omelette, so Minko decides to do everything herself.

With the growing number of reservations, Ohana grows concerned about the changes Kissuiso is making and the lack of sleep the employees are getting. She is also finds herself at odds with some of the others for siding with Sui. Ohana tells Nako about what Sui told her, who tells her why her opinion differs. Things turn bad for the Kissuiso when Tomoe sprains her ankle on the day before the festival, but Sui and Satsuki arrive to fill in as waitresses and together they manage to make it through the day of the festival. Afterwards, everyone goes to the Bonbori festival.

As everyone explores the Bonbori festival, Ohana, who now dreams of being just like Sui goes to meet up with Kō, finally confessing her feelings for him. After the festival, a farewell party is held for Denryoku, where Enishi announces that he agrees to the Kissuiso being shut down until he feels he is talented enough to run it properly. As the Kissuiso closes down the next day and everyone parts ways, Sui sees off Ohana, who promises to return someday, giving her Denryoku's log as a keepsake.