Komichi Akebi has been accepted into Roubai Academy, the middle school her mother, Yuwa, went to. Komichi has dreamed of wearing a sailor uniform ever since she saw her favorite idol, Miki Fukumoto, wearing one. She puts on the brand-new sailor uniform Yuwa made for her and, at last, heads off to her entrance ceremony. She starts out full of hope that she can make lots of new friends, but then she notices that all the other students are wearing blazers. It turns out the school's official uniform has changed from a sailor uniform to a blazer...

Her first self-introduction to her class. Her first school lunch. To Komichi, who never had any classmates throughout her elementary school years, these were all new and fun things. As she eats lunch around joined desks with Erika Kizaki, Touko Usagihara, and Tomono Kojou, a song by Miki Fukumoto plays during the school's lunchtime broadcast. When Touko learns that Miki is Komichi's role model, she hands Komichi a tube of lip balm and asks her to imitate Miki's music video...

After Komichi completes the fifty-meter dash with the fastest time in her class, several athletic clubs try to recruit her, but Komichi can't decide which club she wants to join because there are too many things she wants to try. Following a random turn of events, she exhanges contact information with Kei Tanigawa, the brightest girl in the class, who is also having trouble deciding which club to join. Komichi still hasn't reached a decision when Tomono, who has decided to join the literature club, offers to visit all the different clubs with her. At last, Komichi makes up her mind...

Kei, who joined the photography club, asks Komichi to model for some photos. They get started right away, but Kei says the photos don't match the image she has of Komichi. That's to be expected, considering all Komichi did was copy Miki Fukumoto's poses. So as Komichi begins to wonder just what her "image" is, a certain occurrence results in her and Kei paying a visit to the Mangetsu Dorm, where Touko and many of their other classmates live. Komichi is deeply impressed by the sweets Touko makes, so with Touko's guidance, she tries to make some of her own...

Komichi makes up her mind to invite Erika over during the weekend. But because she's never invited anyone to her house before and doesn't know how to ask, a week has passed before she realizes it. Erika, realizing that Komichi is acting suspicious, invites her to the school library to try to find out what's going on. Komichi takes an interest in the book on fishing that Erika is reading and tells her that she often goes fishing at the lake near her house with a her own homemade pole. Erika responds with a look of envy, and from there...

As classes end and students are heading to their clubs, Hebimori Oshizu, who didn't join any clubs, returns to her dorm alone. She's interested in music and bands, but the rock music playing through her headphones and the music magazines featuring her favorite artists are enough for her. But then one mistaken thought by Komichi changes her day-to-day life: "I want to hear a real guitar! Please let me hear you play sometime!"

Komichi was chosen to lead a group in buying supplies for the athletic festival. On the weekend, she joins Erika, Touko, and Tomono to shop at a large mall. As a local who's been to this mall many times, Komichi is excited to act as their guide, but Touko, who's into fashion and accessorizing, knows more than she does about the shops. They visit a bookstore, where Erika picks up a book happens to be written by an author Tomono likes. In fact, Tomono had just finished reading it on the way to the mall. So she offers to lend it to Erika, but then she realizes the bookmark she had left in it is gone...

Summer has come, marked by the switch to summer uniforms. Practices for the athletic festival have begun, and in addition to her other events, Komichi is in charge of the cheer squad. She says she volunteered for the position because it would give her the chance to watch everyone practice. Komichi has no idea what cheering entails, but after getting some advice from a classmate, she begins to look the part. Meanwhile, Erika and Shijou Riona work hard at tennis practice. Riona is a member of the tennis club, but she can't move as well as she'd like to. Then, when Komichi shows up to cheer them on...