It’s the first day of school and Hana Ichinose is worried that her gap year will distance herself from her classmates. It’s also her birthday! Will Hana be able to enjoy her birthday with her new friends?

Hana and her classmates have lunch together. Hana enjoys comparing lunches and sharing food with each other, but she still keeps her past a secret. Meanwhile, the school's sports test begins. Unfortunately, Hana hasn't gotten any exercise at all during her year off between middle school and high school.

The girls talk about how they're going to spend their Golden Week vacation. After realizing that they all have the final day of the break open, they make plans to meet up for a study session to prepare for proficiency tests the following day, and decide to go to Hana's apartment. Hana can't contain her excitement over having friends coming to her place and Shion is just as thrilled when she hears the news. As Golden Week begins, the four enjoy their stretch of days off, each in their own way, until it's finally the day of the study session.The girls talk about how they're going to spend their Golden Week vacation. After realizing that they all have the final day of the break open, they make plans to meet up for a study session to prepare for proficiency tests the following day, and decide to go to Hana's apartment. Hana can't contain her excitement over having friends coming to her place and Shion is just as thrilled when she hears the news. As Golden Week begins, the four enjoy their stretch of days off, each in their own way, until it's finally the day of the study session.

Hiroe Hannen is the mysterious resident of Temari Heights apartment 202. When Hana goes up to deliver a package for her, paranoid Hiroe mistakes Hana as a suspicious intruder. Her misunderstanding is straightened out with Shion's introduction, but it soon becomes clear that Hiroe is a shut-in, who cannot step out even to the convenience store. Her high school years were smooth sailing until an accident that became a turning point in her life. Hearing Hiroe's personal story resonates with Hana, who then shares her secret of being a year behind in high school.

The Eiko-loving Kamuri is thrilled when she gets a middle school-era photo of her. However, the Eiko in the photo doesn't look like the Eiko Kamuri saw in passing one year earlier. And yet, Eiko confirms that it is indeed her in the picture. Unsatisfied with the lingering mystery, Kamuri talks to Hana who recalls that she recently saw a girl who looked a lot like Eiko in the shopping district. The two are intrigued by the possibility of a look-alike and set off in search of Eiko's secret.

The point of the sleepover at Hana’s apartment is supposed to be a study session to prepare for the girls’ upcoming semester finals, but Tamate is more interested in cooking a delicious dinner for them. The girls also enjoy playing a video game and taking a bath, rewards for studying hard. They cap off the enjoyable evening with bedtime ghost stories which results in a freaked-out Hana being unable to sleep.