Tamao invites Nagisa to the Literature Club where she recites a poem she wrote about a rainbow. Shizuma misses an important lunch discussion. Nagisa and Shizuma have a couple chance encounters; Nagisa runs into Shizuma in a hallway where Shizuma flirts with and attempts to kiss her before being interrupted by the toll of a bell, and Nagisa later finds Shizuma with a young Miator student. After the latter event, Nagisa retreats to the library, and Shizuma follows, catching her and again attempting to kiss her before being interrupted. The Miator student council president scolds Shizuma for her behavior toward the new transfer student and for shirking her responsibilities as Etoile, but Shizuma brushes it off.

Nagisa is shown around the Strawberry Dorms by Tamao and two of their classmates, during which time Nagisa is surprised by Shizuma yet again, who continues to make advances; Nagisa realizes that she finds herself unable to move whenever Shizuma gazes at her. Shizuma retreats to avoid members of the student council. Later, Nagisa accidentally bursts into a student council presidents’ meeting in the midst of an argument over the Etoile’s continued absence. Lulim's student council president, Chikaru Minamoto, tells Nagisa that her interruption was a relief because it ended the argument regarding Shizuma’s absence early. She explains some responsibilities of the Etoile that Shizuma is shirking as well as some major differences between the three schools, explaining arguments between the other student council presidents.

Hikari recalls being transferred to Spica a year prior and the first time she saw Amane riding her horse, thinking she was like an angel. Hikari and Yaya, her friend and roommate, sing in the St. Spica choir and practice for the congratulatory ceremony for the return of Amane and the rest of the horseback-riding team. Hikari, who is extremely nervous for the event, prays alone at a fountain for a good performance. She and other Spica students gather to see Amane’s return, at which time the Etoile presents Amane with a bouquet of roses for her accomplishments. At the ceremony, during the choir performance, Hikari accidentally starts singing early due to her nervousness, and becomes embarrassed. Amane stands to quiet the room and the performance progresses without Hikari’s participation; she is extremely disappointed in herself.

Select first years attending Miator become room-temps for older students. One such student, Chiyo, becomes the room-temp for Nagisa and Tamao.

Nagisa tries to find a club she would like to join, but she's not interested in any of them. Later, she discovers the Etoile's private greenhouse and helps with the flowers.

As Hikari and Amane's relationship progresses, Shion tries to convince Amane to run for the position of Etoile in the next election. However, unknown to Shion, Kaname and Momomi work out a different plan involving Hikari.

Nagisa offers her favorite umbrella to Kagome but does not give her name. Later, Kagome gets help from Chikaru and her friends, and they start to try to find out who gave Kagome the umbrella. Meanwhile, Tamao tries desperately to fulfill her fantasy of walking under an umbrella together with Nagisa.

The "Seven Mysteries" of the Strawberry Dorms are mentioned. Nagisa and Tamao start to investigate the first mystery: "The Girl of the Hallway", despite Nagisa's terrible fear of the supernatural.

Nagisa starts to prepare for the mid-year exams by getting tutored by Shizuma in French.