Tōya Fujii wakes up to a television interview with his romantic interest and idol singer Yuki Morikawa, and laments the time they have to spend together. Later in the day Tōya has a conversation with Yuki, before she departs for work. At work, Rina Ogata finds Yuki has been bullied by an idol group. After Yuki resolves the problem, she calls Tōya on the phone before Rina catches her and expresses interest in seeing him.

After his conversation with Yuki on the phone, Tōya initially refuses, but later relents to accompany his childhood friend Haruka Kawashima on a walk. Meanwhile, Rina walks into her brother, Eiji Ogata's room, and finds Yuki in tears after their conversation. The next day, Yuki and Rina arrives at the café Echoes, Tōya's workplace. Rina then asks Tōya for his telephone number prior to her departure, and later calls him at night.

At night, Rina calls Tōya on the phone and offers him a job to help her manager, which he accepts to meet Yuki. Later, Tōya receives a call from Yuki, who invites him on a date on Saturday. Tōya then asks Haruka to apply his university registration on that day and accepts the invitation. The following day, Tōya heads to work and finds he is promoted as Rina's assistant. Rina then admonishes Tōya and Yuki as an attempt to create time for the two. Later, Tōya receives calls and learns that his date is canceled and he is fired as Rina's assistant. He then accepts a job to become a tutor for Mana Mizuki, and arrives at Echoes and learns that it was Eiji Ogata who fired him.

Tōya awakes to a telephone call from Rina, who adjusts the meeting venue and time for his date with Yuki. The next day, Tōya arrives at Hotarugasaki Station, and meets Mana Mizuki, who is on her way to attend school. The two waits for Yuki and after a short while, Mana proposes to Tōya to wait for Yuki at Hotarugasaki Academy, their destination. At the meantime, Rina arrives at Yūnagi Station, where she adjusts the meeting venue to, but leaves after waiting for Tōya. Later, Yuki arrives at Hotarugasaki Station, and decides to look for Tōya elsewhere after awaiting him. At night, the two stumbles upon each other. Yuki then reveals to Tōya that she is granted a single release, and invites him into her apartment.

After spending the night at Yuki's apartment, Tōya accepts Yayoi Shinozuka's offer for transportation to home. Yayoi then offers Tōya to a movie and dinner, and attempts to seduces Tōya to break up with Yuki. Later, Misaki requests Tōya to provide an opinion on a manuscript she has written for a play. The next day, Tōya arrives in campus to meet Misaki. The theater club however, forcefully accepts Misaki's manuscript, and assigns her to create the materials needed before the conversation can take place. Later that night, Misaki, not knowing what to do, calls Tōya and requests his help.

At night, Yuki finishes the recording session for her single, while Misaki moves into Tōya's father's house in order to prepare for her materials for the play. The following day, Tōya again heads to work as a tutor, and is surprised to find Mana as his student, whom he mistaken as her sister. Afterwards, Tōya and Misaki heads to Echoes to have dinner. Rina later comes in and mistakes Tōya and Misaki in a relationship. Eiji then takes Tōya and Rina to a recording session, while Tōya attempts to explain for the misunderstanding.