At a CD store, Ichika Hoshino hears a song by Miku that she has never heard before. On the monitor, she sees a "Hatsune Miku" in a form she has never seen before, and couldn't help say it out loud, "Miku!?" Miku was surprised at the voice, her eyes meet Ichika's, but she disappears shortly after. Later, after a live performance on the street, the Miku that Ichika saw before appears on her smartphone. Miku looks sad and downcast, and when Ichika quietly asks Miku about her story, she tells Ichika that there are people to whom she wants to deliver her songs, but no matter how much she sings, her songs are not reaching them. Miku, who saw Ichika singing to the hearts of many people at her live performances, thought that if she learns more about Ichika, she can do the same, and came to Ichika. Ichika smiles at Miku and says, "If it's all right with me." And a new story of Hatsune Miku and the boys and girls begins—.

After the success of his crowdfunded movie featuring the woman of his dreams, Chizuru Ichinose, university student Kazuya Kinoshita resumes his life of lies and deception. Although he pretends that he has been in an ideal relationship with Chizuru for more than a year, Kazuya still mostly sees her through a rental girlfriend company's services. However, after Kazuya attends a private party with Chizuru, he reaches the decision to finally confess his feelings to her. Unfortunately for him, his trial girlfriend Ruka Sarashina and his ex-girlfriend Mami Nanami continue to complicate his already messy attempts at romance. While he is forced to keep up his facade, Kazuya is under pressure to find a solution to his ever chaotic love life.

These are the recollections of a group of men who bet everything on their bicycles. The central pillars of their respective teams, the third years. New stories revealing their pasts are about to begin!

For high schooler Kei—and for at least forty-six others—immortality comes as the nastiest surprise ever. Sadly for Kei, such a feat doesn't make him a superhero. In the eyes of both the general public and governments, he's a rare specimen who needs to be hunted down and handed over to scientists to be experimented on for life—a demi-human who must die a thousand deaths for the benefit of humanity.