Ep. 9: Yozora se pone una máscara de caballo para un viaje privado a la playa con Sena y los miembros del club.

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Yozora messages everyone to dress in swimsuits for the day's club activities. As the members arrive, they find Yozora dressed up in a swimsuit with a horse mask. After playing around with the horse mask, Yozora explains that she wanted to make use of her swimsuit while avoiding crowds. Sena offers Yozora her private beach and summer home as a way to alleviate her concern of crowds. Labeling it as a "training camp," the club accepts. The next day, Sena calls Kodaka and asks Kobato and him to come to her house and meet her father, Pegasus. Kodaka and Kobato arrive just in time for dinner. During dinner, Pegasus puts Hayato, Kodaka's father, down prompting Kodaka to fight back, shocking everyone. Next, the Kashiwazakis offer Kodaka and Kobato rooms for the night as the last bus for home has already left. While Sena takes Kobato for a bath, Pegasus offers Kodaka a drink. Pegasus talks about having drinks with Hayato in the past and gets drunk, falling asleep on Kodaka's bed. Kodaka looks for help but bumps into a naked Kobato running away from a naked Sena. Sena notices Kodaka and runs out of the house. The next day, Kodaka lies that he was too drunk to recall the events of the previous evening.