Though no one surpasses Shirogane when it comes to academics, his lack of dancing skills finds him in his third intense training session with Fujiwara in preparation for the school sports festival. However, Shirogane is such a hopeless dancer that Fujiwara’s patience runs out and storms out of the room. As Shirogane proceeds to diligently practice on his own, Kaguya appears and starts giving him dance lessons. Fujiwara, who has returned to check on Shirogane, begins to argue with Kaguya about the best way to teach him and so a battle ensues! Who will end up victorious as the better dance teacher?

The student council is asked to model for the Shuchiin Academy brochure. However, Kaguya's family has a strict policy prohibiting her from being photographed for any forms of publicity, and as result, she is unable to participate. As Kaguya longingly observes the rooftop photo shoot, the student council members propose to take a final group photo, solely for private use, on their cell phone, which makes Kaguya very happy. Just then a gust of wind blows across the rooftop, causing her to drop her phone and sending it way down below to the school grounds. Kaguya picks up her shattered cell phone from the floor and begins to reflect on all the photos with everyone she has lost, and becomes overwhelmed with sadness.

While all the classes were consumed in preparation for Shuchiin Academy's Hoshin Culture Festival, Shirogane and those from Class 2-B were working hard at making balloon art. As Fujiwara delicately puts finishing touches on a cute balloon bear, the clumsy Shirogane keeps popping them no matter how many times he tries. The sound of balloons popping echoes sadly in the classroom. But Fujiwara, who has joined Shirogane's special training many times up until now, hardens her heart and decides not to help this time. To overcome this without the help of others, Shirogane heads to the student council room for practice. However, Kaguya is in the room...

Ishigami, who succeeded in inviting Tsubame on a Culture Festival date, browses around campus exhibits in an attempt to shorten the distance between the two. In the end, it didn't go as well as hoped. But when he tried to express his everyday feelings of gratitude for the upperclassman he feels indebted to, it caused an unexpected uproar. Shirogane was astonished after witnessing the unexpected event. Gripped by the fear that his secretly planned "Make Shinomiya Confess Plan" will be ruined, he sinks into despair after thinking too hard about every detail.

Shroud in a cape and dressed in the guise of the phantom thief Arsène, Shirogane waited for Kaguya's arrival atop the clock tower roof overlooking Shuchiin. When asked why he would do such a thing, Shirogane answered that there was something he wanted to show Kaguya. The festival's afterparty has already begun as the sun set over this school and the students could be seen encircling and enjoying the bonfire. While the emotions that could not be expressed with words mingled between Shirogane and Kaguya's hearts... Shirogane carried out his ultra-romantic operation!!