Summary: After finally making her long awaited smartphone debut, Kaguya restlessly contemplates over how to respond to Shirogane's LINE message. As Hayasaka watches over, she realizes that Kaguya is not aware of the "read receipt" function. If Kaguya lies by responding that she just read the message, she runs the risk of exposing the truth that she had been obsessively staring at Shirogane's message with glee. Weighing out her options to best serve her mistress, Hayasaka decides to explain LINE's functions when suddenly a new problem emerges.

Summary: Kaguya makes a big fuss when she learns that Shirogane was invited to a karaoke group date and orders Hayasaka to remove him from the venue. Dissatisfied with such treatment yet unable to refuse her mistress' instructions, Hayasaka joins the party as Shirogane's acquaintance Smithee A. Herthaka and plans to ruin the atmosphere by airing out that Shirogane once dumped her. And although she manages to get Shirogane out, a rebellious spirit against Kaguya has begun to grow...

Summary: Shirogane couldn't tell Ms. Herthaka that sometimes humans need to expose their weaknesses and endeavors to practice rapping which should be able to convey that. But his rapping skills are catastrophic. Fujiwara, who previously taught him singing and dancing, tags along for practice. But she's a total amateur when it comes to rap that she's on the level where she's convinced it's all simple-minded puns. So Fujiwara begins special training. With the advice from Shirogane who has overflowing knowledge on rap music, she rapidly improves... But something is still missing!

Summary: Kaguya learns about the romantic legend that giving a heart-shaped gift at the Culture Festival brings eternal love. She wonders if there is a way she can give Shirogane a heart-shaped gift without getting caught. But her plans are full of errors, and she panics. She becomes sick of herself as a cowardly person who can only come up with negative ideas. There, Shirogane, exhausted from preparing for the Culture Festival, shows up. As Kaguya sees Shirogane doing his best for everyone as the student council president, she...

Summary: One week after enrolling in Shuchiin Academy as a special scholarship student, Shirogane had already regretted that he had come to a school he should not have. The students around him were elites born into famous families. Shirogane, who is from a modest household and enrolled from a school outside of Shuchiin's track, couldn't even find a friend to eat with, so he quietly kills time away from the cafeteria. Just as Shirogane's miserable emotions explode, an upperclassman with a student cap appears in front of him. A shining golden fourragere lays across his chest as proof of student council president. And he says that he's come to recruit Shirogane into the student council.

Summary: The moment the culture festival reached its finale, the jewel object made by Shirogane was stolen by a phantom thief who calls himself Arsène. Kaguya and the others headed to the roof where the phantom thief keeps appearing, but there was no one there. Fujiwara, who transformed into a genius detective, struggles to solve the mystery behind the calling card and uncover the thief's true identity. But Kaguya, left behind at the scene of the crime, had begun to figure out the criminal. The problem is the location. Kaguya traced the phantom thief's line of thinking and headed to where he is now...

Summary: 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!!